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O'Hare Intl. Airport to St. Louis Lambert International Airport flight

Explore the cheapest one-way and round-trip flights from O'Hare Intl. Airport to St. Louis Lambert International Airport over the next 90 days, with one-way fares from AED 193 and round-trip from AED 411. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      ORD 10:39 PM
      1h 23m
      Nonstop
      STL 12:02 AM
      Chicago - St. Louis | Sat, Dec 12 | American Airlines
      STL 9:50 PM
      1h 10m
      Nonstop
      MDW 11:00 PM
      St. Louis - Chicago | Sat, Dec 19 |
      AED 411 AED 552
      26% off
      26% off
      AED 552 AED 411
    • ORD 9:30 AM
      1h 22m
      Nonstop
      STL 10:52 AM
      Chicago - St. Louis | Wed, Dec 16 | American Airlines
      STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Wed, Dec 23 | American Airlines
      AED 411 AED 552
      26% off
      26% off
      AED 552 AED 411
    • ORD 6:40 PM
      1h 24m
      Nonstop
      STL 8:04 PM
      Chicago - St. Louis | Fri, Nov 20 | American Airlines
      STL 5:45 AM
      1h 10m
      Nonstop
      MDW 6:55 AM
      St. Louis - Chicago | Tue, Nov 24 |
      AED 426 AED 552
      23% off
      23% off
      AED 552 AED 426
    • ORD 9:30 AM
      1h 25m
      Nonstop
      STL 10:55 AM
      Chicago - St. Louis | Sun, Dec 6 | American Airlines
      STL 5:23 PM
      1h 36m
      Nonstop
      ORD 6:59 PM
      St. Louis - Chicago | Sun, Dec 6 | American Airlines
      AED 428
      22% off
      AED 552 AED 428
    • ORD 11:30 AM
      1h 43m
      Nonstop
      STL 1:13 PM
      Chicago - St. Louis | Sun, Dec 13 | American Airlines
      STL 8:24 PM
      1h 27m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Sun, Dec 13 | American Airlines
      AED 428
      22% off
      AED 552 AED 428
    • ORD 6:50 AM
      1h 39m
      Nonstop
      STL 8:29 AM
      Chicago - St. Louis | Sun, Dec 20 | American Airlines
      STL 8:07 PM
      1h 38m
      Nonstop
      ORD 9:45 PM
      St. Louis - Chicago | Sun, Dec 20 | American Airlines
      AED 428
      22% off
      AED 552 AED 428
    • ORD 9:09 PM
      1h 25m
      Nonstop
      STL 10:34 PM
      Chicago - St. Louis | Thu, Jan 7 | American Airlines
      STL 7:21 AM
      1h 31m
      Nonstop
      ORD 8:52 AM
      St. Louis - Chicago | Sat, Jan 9 | American Airlines
      AED 429
      22% off
      AED 552 AED 429
    • ORD 10:39 PM
      1h 23m
      Nonstop
      STL 12:02 AM
      Chicago - St. Louis | Fri, Dec 4 | American Airlines
      STL 5:02 AM
      1h 28m
      Nonstop
      ORD 6:30 AM
      St. Louis - Chicago | Sun, Dec 6 | American Airlines
      AED 430
      22% off
      AED 552 AED 430
    • ORD 10:39 PM
      1h 20m
      Nonstop
      STL 11:59 PM
      Chicago - St. Louis | Thu, Nov 19 | American Airlines
      STL 5:00 AM
      1h 29m
      Nonstop
      ORD 6:29 AM
      St. Louis - Chicago | Thu, Nov 26 | American Airlines
      AED 430
      22% off
      AED 552 AED 430
    • CHI 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Chicago - St. Louis | Sat, Nov 14 | Normal Airline
      STL 3:00 PM
      6h
      Nonstop
      CHI 4:00 PM
      St. Louis - Chicago | Mon, Nov 16 | Normal Airline
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    • Cheapest
      ORD 10:39 PM
      1h 20m
      Nonstop
      STL 11:59 PM
      Chicago - St. Louis | Thu, Dec 17 | American Airlines
      AED 193 AED 279
      31% off
      31% off
      AED 279 AED 193
    • ORD 6:50 AM
      1h 39m
      Nonstop
      STL 8:29 AM
      Chicago - St. Louis | Wed, Dec 30 | American Airlines
      AED 200 AED 279
      28% off
      28% off
      AED 279 AED 200
    • ORD 9:10 PM
      1h 22m
      Nonstop
      STL 10:32 PM
      Chicago - St. Louis | Wed, Jan 6 | American Airlines
      AED 201 AED 279
      28% off
      28% off
      AED 279 AED 201
    • ORD 2:29 PM
      1h 22m
      Nonstop
      STL 3:51 PM
      Chicago - St. Louis | Fri, Jan 1 | American Airlines
      AED 214
      83% off
      AED 1,261 AED 214
    • ORD 10:39 PM
      1h 20m
      Nonstop
      STL 11:59 PM
      Chicago - St. Louis | Thu, Nov 19 | American Airlines
      AED 215
      23% off
      AED 279 AED 215
    • ORD 1:50 PM
      1h 22m
      Nonstop
      STL 3:12 PM
      Chicago - St. Louis | Fri, Nov 27 | American Airlines
      AED 215
      23% off
      AED 279 AED 215
    • ORD 1:50 PM
      1h 22m
      Nonstop
      STL 3:12 PM
      Chicago - St. Louis | Thu, Nov 26 | American Airlines
      AED 215
      81% off
      AED 1,143 AED 215
    • ORD 9:10 PM
      1h 22m
      Nonstop
      STL 10:32 PM
      Chicago - St. Louis | Fri, Jan 1 | American Airlines
      AED 216
      23% off
      AED 279 AED 216
    • ORD 11:30 AM
      1h 45m
      Nonstop
      STL 1:15 PM
      Chicago - St. Louis | Fri, Jan 8 | American Airlines
      AED 216
      23% off
      AED 279 AED 216
    • CHI 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Chicago - St. Louis | Sat, Nov 14 | Normal Airline
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    • Cheapest nonstop
      ORD 10:39 PM
      1h 20m
      Nonstop
      STL 11:59 PM
      Chicago - St. Louis | Thu, Dec 17 | American Airlines
      AED 193 AED 279
      31% off
      31% off
      AED 279 AED 193
    • ORD 6:50 AM
      1h 39m
      Nonstop
      STL 8:29 AM
      Chicago - St. Louis | Wed, Dec 30 | American Airlines
      AED 200 AED 279
      28% off
      28% off
      AED 279 AED 200
    • ORD 9:10 PM
      1h 22m
      Nonstop
      STL 10:32 PM
      Chicago - St. Louis | Wed, Jan 6 | American Airlines
      AED 201 AED 279
      28% off
      28% off
      AED 279 AED 201
    • ORD 2:29 PM
      1h 22m
      Nonstop
      STL 3:51 PM
      Chicago - St. Louis | Fri, Jan 1 | American Airlines
      AED 214
      83% off
      AED 1,261 AED 214
    • ORD 10:39 PM
      1h 20m
      Nonstop
      STL 11:59 PM
      Chicago - St. Louis | Thu, Nov 19 | American Airlines
      AED 215
      23% off
      AED 279 AED 215
    • ORD 1:50 PM
      1h 22m
      Nonstop
      STL 3:12 PM
      Chicago - St. Louis | Fri, Nov 27 | American Airlines
      AED 215
      23% off
      AED 279 AED 215
    • ORD 1:50 PM
      1h 22m
      Nonstop
      STL 3:12 PM
      Chicago - St. Louis | Thu, Nov 26 | American Airlines
      AED 215
      81% off
      AED 1,143 AED 215
    • ORD 9:10 PM
      1h 22m
      Nonstop
      STL 10:32 PM
      Chicago - St. Louis | Fri, Jan 1 | American Airlines
      AED 216
      23% off
      AED 279 AED 216
    • ORD 11:30 AM
      1h 45m
      Nonstop
      STL 1:15 PM
      Chicago - St. Louis | Fri, Jan 8 | American Airlines
      AED 216
      23% off
      AED 279 AED 216
    • CHI 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Chicago - St. Louis | Sat, Nov 14 | Normal Airline
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    • Cheapest nonstop
      ORD 2:29 PM
      1h 22m
      Nonstop
      STL 3:51 PM
      Chicago - St. Louis | Fri, Jan 1 | American Airlines
      AED 214 AED 1,261
      83% off
      83% off
      AED 1,261 AED 214
    • ORD 2:29 PM
      1h 22m
      Nonstop
      STL 3:51 PM
      Chicago - St. Louis | Wed, Dec 30 | American Airlines
      AED 216 AED 1,261
      83% off
      83% off
      AED 1,261 AED 216
    • ORD 6:50 AM
      1h 39m
      Nonstop
      STL 8:29 AM
      Chicago - St. Louis | Fri, Dec 25 | American Airlines
      AED 216 AED 1,261
      83% off
      83% off
      AED 1,261 AED 216
    • ORD 6:50 AM
      1h 39m
      Nonstop
      STL 8:29 AM
      Chicago - St. Louis | Mon, Dec 28 | American Airlines
      AED 216
      83% off
      AED 1,261 AED 216
    • ORD 9:09 PM
      1h 25m
      Nonstop
      STL 10:34 PM
      Chicago - St. Louis | Thu, Jan 7 | American Airlines
      AED 216
      83% off
      AED 1,261 AED 216
    • ORD 6:19 PM
      1h 33m
      Nonstop
      STL 7:52 PM
      Chicago - St. Louis | Thu, Dec 31 | American Airlines
      AED 216
      83% off
      AED 1,261 AED 216
    • ORD 9:10 PM
      1h 22m
      Nonstop
      STL 10:32 PM
      Chicago - St. Louis | Tue, Dec 29 | American Airlines
      AED 216
      83% off
      AED 1,261 AED 216
    • ORD 2:29 PM
      1h 22m
      Nonstop
      STL 3:51 PM
      Chicago - St. Louis | Thu, Dec 17 | American Airlines
      AED 217
      83% off
      AED 1,261 AED 217
    • ORD 4:50 PM
      1h 27m
      Nonstop
      STL 6:17 PM
      Chicago - St. Louis | Sat, Dec 5 | American Airlines
      AED 217
      83% off
      AED 1,261 AED 217
    • CHI 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Chicago - St. Louis | Sat, Nov 14 | Normal Airline
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    • Cheapest nonstop
      ORD 9:30 AM
      1h 23m
      Nonstop
      STL 10:53 AM
      Chicago - St. Louis | Wed, Nov 18 | American Airlines
      AED 215 AED 1,439
      85% off
      85% off
      AED 1,439 AED 215
    • ORD 2:12 PM
      1h 31m
      Nonstop
      STL 3:43 PM
      Chicago - St. Louis | Wed, Nov 18 | United Airlines
      AED 371 AED 1,439
      74% off
      74% off
      AED 1,439 AED 371
    • ORD 2:12 PM
      1h 31m
      Nonstop
      STL 3:43 PM
      Chicago - St. Louis | Fri, Nov 13 | United Airlines
      AED 386 AED 1,439
      73% off
      73% off
      AED 1,439 AED 386
    • ORD 11:15 AM
      1h 35m
      Nonstop
      STL 12:50 PM
      Chicago - St. Louis | Fri, Nov 13 | American Airlines
      AED 709
      51% off
      AED 1,439 AED 709
    • ORD 8:52 AM
      1h 24m
      Nonstop
      STL 10:16 AM
      Chicago - St. Louis | Thu, Nov 19 | American Airlines
      AED 932
      35% off
      AED 1,439 AED 932
    • ORD 9:30 AM
      1h 23m
      Nonstop
      STL 10:53 AM
      Chicago - St. Louis | Mon, Nov 16 | American Airlines
      AED 982
      32% off
      AED 1,439 AED 982
    • ORD 4:50 PM
      1h 27m
      Nonstop
      STL 6:17 PM
      Chicago - St. Louis | Sat, Nov 14 | American Airlines
      AED 983
      32% off
      AED 1,439 AED 983
    • ORD 4:50 PM
      1h 27m
      Nonstop
      STL 6:17 PM
      Chicago - St. Louis | Sun, Nov 15 | American Airlines
      AED 983
      32% off
      AED 1,439 AED 983
    • ORD 10:39 PM
      1h 20m
      Nonstop
      STL 11:59 PM
      Chicago - St. Louis | Tue, Nov 17 | American Airlines
      AED 991
      31% off
      AED 1,439 AED 991
    • CHI 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Chicago - St. Louis | Sat, Nov 14 | Normal Airline
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    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Wed, Dec 2 | United Airlines
      AED 369 AED 1,143
      68% off
      68% off
      AED 1,143 AED 369
    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Wed, Dec 9 | United Airlines
      AED 375 AED 1,143
      67% off
      67% off
      AED 1,143 AED 375
    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Tue, Dec 8 | United Airlines
      AED 375 AED 1,143
      67% off
      67% off
      AED 1,143 AED 375
    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Thu, Dec 10 | United Airlines
      AED 376
      67% off
      AED 1,143 AED 376
    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Tue, Dec 15 | United Airlines
      AED 376
      67% off
      AED 1,143 AED 376
    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Mon, Dec 14 | United Airlines
      AED 376
      67% off
      AED 1,143 AED 376
    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Tue, Dec 1 | United Airlines
      AED 403
      65% off
      AED 1,143 AED 403
    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Thu, Dec 3 | United Airlines
      AED 454
      60% off
      AED 1,143 AED 454
    • ORD 9:45 PM
      1h 14m
      Nonstop
      STL 10:59 PM
      Chicago - St. Louis | Mon, Dec 7 | United Airlines
      AED 891
      22% off
      AED 1,143 AED 891
    • CHI 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Chicago - St. Louis | Sat, Nov 14 | Normal Airline
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Displayed flight fares from Chicago to St. Louis are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from O'Hare Intl. Airport to St. Louis Lambert International Airport

What is the cheapest month for one-way flights from O'Hare Intl. Airport to St. Louis Lambert International Airport?

Data is based on average one-way flight prices from O'Hare Intl. Airport to St. Louis Lambert International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from O'Hare Intl. Airport to St. Louis Lambert International Airport, the best time to buy is in June, with an average price of AED 688. You’ll want to avoid January, when the average price can reach as high as AED 1,090.

AED 1,090
AED 889
AED 688
AED 487
    Cheapest
  • AED 948
    Nov
  • AED 801
    Dec
  • AED 1,090
    Jan
  • AED 796
    Feb
  • AED 1,044
    Mar
  • AED 779
    Apr
  • AED 832
    May
  • AED 688
    Jun
  • AED 869
    Jul
  • AED 838
    Aug
  • AED 776
    Sep
  • AED 908
    Oct

What is the cheapest day of the week to fly from O'Hare Intl. Airport to St. Louis Lambert International Airport?

The data is based on the past 12 months and shows the average ticket prices from O'Hare Intl. Airport to St. Louis Lambert International Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from O'Hare Intl. Airport to St. Louis Lambert International Airport is Tuesday, with average fares typically lower than other days. You’ll want to avoid flying on Friday, as ticket prices are usually the highest that day.

AED 1,053
AED 787
AED 520
AED 254
  • AED 957
    Mon
  • AED 520
    Tue
  • AED 821
    Wed
  • AED 903
    Thu
  • AED 1,053
    Fri
  • AED 1,039
    Sat
  • AED 874
    Sun

Which airline offers the cheapest flights from O'Hare Intl. Airport to St. Louis Lambert International Airport?

The cheapest airline flying from O'Hare Intl. Airport to St. Louis Lambert International Airport is American Airlines (from AED 193) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

American Airlines
From AED 193
Frontier Airlines
From AED 217
Delta Air Lines
From AED 232
United Airlines
From AED 309
Sun Country Airlines
From AED 911

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What is the flight schedule from O'Hare Intl. Airport to St. Louis Lambert International Airport?

Check the schedule for flights from Chicago to St. Louis and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA3292

    O'Hare Intl. Airport

    10:39 PM

    ORD

    1h 16m

    11:55 PM

    STL

    S M T W T F S
    Search

  2. AA3484

    O'Hare Intl. Airport

    3:20 PM

    ORD

    1h 23m

    4:43 PM

    STL

    S M T W T F S
    Search

  3. AA3768

    O'Hare Intl. Airport

    8:50 PM

    ORD

    1h 24m

    10:14 PM

    STL

    S M T W T F S
    Search

  4. AA6332

    O'Hare Intl. Airport

    6:50 AM

    ORD

    1h 39m

    8:29 AM

    STL

    S M T W T F S
    Search

  5. DL3902

    O'Hare Intl. Airport

    11:19 AM

    ORD

    1h 25m

    Nonstop

    1:44 PM

    DTW

    S M T W T F S
    Search

  6. DL1541

    Detroit Metropolitan Wayne County Airport

    7:55 PM

    DTW

    1h 42m

    Nonstop

    8:37 PM

    STL

    S M T W T F S

  7. DL1306

    O'Hare Intl. Airport

    5:20 PM

    ORD

    1h 35m

    Nonstop

    6:55 PM

    MSP

    S M T W T F S
    Search

  8. DL1609

    Minneapolis-Saint Paul International Airport

    9:45 PM

    MSP

    1h 33m

    Nonstop

    11:18 PM

    STL

    S M T W T F S

  9. DL1717

    O'Hare Intl. Airport

    6:00 AM

    ORD

    1h 36m

    Nonstop

    7:36 AM

    MSP

    S M T W T F S
    Search

  10. DL5243

    Minneapolis-Saint Paul International Airport

    9:00 AM

    MSP

    1h 38m

    Nonstop

    10:38 AM

    STL

    S M T W T F S

  11. DL2039

    O'Hare Intl. Airport

    7:00 AM

    ORD

    1h 26m

    Nonstop

    9:26 AM

    DTW

    S M T W T F S
    Search

  12. DL1371

    Detroit Metropolitan Wayne County Airport

    12:40 PM

    DTW

    1h 43m

    Nonstop

    1:23 PM

    STL

    S M T W T F S

  13. DL1716

    O'Hare Intl. Airport

    2:44 PM

    ORD

    1h 22m

    Nonstop

    5:06 PM

    DTW

    S M T W T F S
    Search

  14. DL1541

    Detroit Metropolitan Wayne County Airport

    7:55 PM

    DTW

    1h 42m

    Nonstop

    8:37 PM

    STL

    S M T W T F S

  15. F91483

    O'Hare Intl. Airport

    11:47 AM

    ORD

    2h 59m

    Nonstop

    1:46 PM

    DEN

    S M T W T F S
    Search

  16. F93302

    Denver International Airport

    3:50 PM

    DEN

    2h 4m

    Nonstop

    6:54 PM

    STL

    S - T - T F -
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About O'Hare Intl. Airport and St. Louis Lambert International Airport

Learn about O'Hare Intl. Airport (ORD) and St. Louis Lambert International Airport (STL) — including location, terminals, transportation, and travel tips.

Flight distance 416.17 km
Cheapest one-way ticket price AED 193
Cheapest return ticket price AED 411

FAQs for O'Hare Intl. Airport to St. Louis Lambert International Airport Flights

  • How long is the flight from O'Hare Intl. Airport to St. Louis Lambert International Airport?

    O'Hare Intl. Airport to St. Louis Lambert International Airport takes about 55 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 15 daily flights from O'Hare Intl. Airport (ORD) to St. Louis Lambert International Airport (STL).
  • The earliest flight from O'Hare Intl. Airport to St. Louis Lambert International Airport departs at 07:27, and the last departs at 23:00, with about 27 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from O'Hare Intl. Airport (ORD) to St. Louis Lambert International Airport (STL) is quite popular. Without considering departure times or holidays, tickets cost around AED 985 in November, the most expensive month to book this route.
  • The earliest flight departs from O'Hare Intl. Airport (ORD) at 06:45 and arrives in St. Louis Lambert International Airport (STL) at 08:09.
  • The latest flight departs from O'Hare Intl. Airport (ORD) at 21:23 and arrives in St. Louis Lambert International Airport (STL) at 22:45.
    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.
  • American Airlines is a very popular airline operating an average of 2513 flights per month.
  • One-way flights from O'Hare Intl. Airport to St. Louis Lambert International Airport currently start from AED 193, and round-trip fares start from AED 411. The current lowest fare is a American Airlines flight departing on Thu, Dec 17; prices may vary depending on availability.
  • Yes. United Airlines, American Airlines and GoJet Airlines operate direct flights from O'Hare Intl. Airport to St. Louis Lambert International Airport, with an average flight time of 50 minutes, and around 119 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from O'Hare Intl. Airport to St. Louis Lambert International Airport is AED 679. Prices may vary depending on the departure date, airline, and availability.
  • Porter Airlines are the most popular budget airlines flying from O'Hare Intl. Airport to St. Louis Lambert International Airport, with one-way fares starting from AED 193. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • O'Hare Intl. Airport to St. Louis Lambert International Airport operates around 116 weekly flights, mainly by United Airlines, American Airlines and GoJet Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter O'Hare Intl. Airport and St. Louis Lambert International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.