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Flights from Boston to Washington D.C.

Hi, I've summed up all the key info for Boston to Washington D.C. flights

Cheapest one-way

$ 50
Delta Air Lines Tue, Oct 20

69% below next 30d avg. ($161)

Cheapest round-trip

$ 103
Delta Air Lines Wed, Oct 7

63% below next 30d avg. ($282)

When to travel

October Cheapest month
July Peak month

Fastest flight

1h 50m 1m faster than avg. (1h 51m)

Recommended airlines

With a lowest one-way fare of $50 , travelers can expect an average price of $161 for upcoming trips, while round-trip tickets start at $103 . Flights typically take around 1h 51m , but the fastest nonstop option completes the journey in just 1h 50m minutes. There are 156 flights weekly on this route. You can arrive at any of the following airports in Washington D.C.: Dulles International Airport (IAD) , and Ronald Reagan Washington National Airport (DCA) . Flights from Boston Logan International Airport to Ronald Reagan Washington National Airport (BOS-DCA) are by far the most popular option for this route. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 2d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from Boston to Washington D.C. over the next 90 days, with one-way fares from $50 and round-trip from $103. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        BOS 10:45 AM
        1h 53m
        Nonstop
        DCA 12:38 PM
        Boston - Washington D.C. | Wed, Oct 7 | Delta Air Lines
        DCA 6:00 AM
        1h 40m
        Nonstop
        BOS 7:40 AM
        Washington D.C. - Boston | Wed, Oct 14 | Delta Air Lines
        $103 $420
        75% off
        75% off
        $420 $103
      • BOS 10:45 AM
        1h 53m
        Nonstop
        DCA 12:38 PM
        Boston - Washington D.C. | Tue, Oct 6 | Delta Air Lines
        DCA 10:16 AM
        1h 44m
        Nonstop
        BOS 12:00 PM
        Washington D.C. - Boston | Wed, Oct 7 | Delta Air Lines
        $110 $420
        74% off
        74% off
        $420 $110
      • BOS 6:00 AM
        1h 56m
        Nonstop
        DCA 7:56 AM
        Boston - Washington D.C. | Thu, Oct 1 | Delta Air Lines
        DCA 5:00 PM
        1h 55m
        Nonstop
        BOS 6:55 PM
        Washington D.C. - Boston | Sat, Oct 3 | Delta Air Lines
        $110 $420
        74% off
        74% off
        $420 $110
      • BOS 8:15 PM
        1h 48m
        Nonstop
        DCA 10:03 PM
        Boston - Washington D.C. | Tue, Sep 29 | Delta Air Lines
        DCA 3:15 PM
        1h 49m
        Nonstop
        BOS 5:04 PM
        Washington D.C. - Boston | Tue, Oct 6 | Delta Air Lines
        $110
        74% off
        $420 $110
      • BOS 8:22 AM
        1h 58m
        Nonstop
        DCA 10:20 AM
        Boston - Washington D.C. | Wed, Oct 7 | American Airlines
        DCA 8:00 AM
        1h 47m
        Nonstop
        BOS 9:47 AM
        Washington D.C. - Boston | Wed, Oct 14 | American Airlines
        $111
        74% off
        $420 $111
      • BOS 4:47 PM
        1h 47m
        Nonstop
        DCA 6:34 PM
        Boston - Washington D.C. | Sat, Oct 3 | Jetblue Airways
        DCA 9:55 PM
        1h 35m
        Nonstop
        BOS 11:30 PM
        Washington D.C. - Boston | Sat, Oct 10 | Jetblue Airways
        $111
        74% off
        $420 $111
      • BOS 7:26 PM
        1h 46m
        Nonstop
        DCA 9:12 PM
        Boston - Washington D.C. | Sat, Oct 3 | American Airlines
        DCA 4:55 PM
        1h 46m
        Nonstop
        BOS 6:41 PM
        Washington D.C. - Boston | Tue, Oct 6 | American Airlines
        $111
        74% off
        $420 $111
      • BOS 6:00 PM
        1h 58m
        Nonstop
        DCA 7:58 PM
        Boston - Washington D.C. | Sat, Oct 10 | Delta Air Lines
        DCA 6:00 AM
        1h 40m
        Nonstop
        BOS 7:40 AM
        Washington D.C. - Boston | Sun, Oct 11 | Delta Air Lines
        $305
        27% off
        $420 $305
      • BOS 7:30 AM
        2h
        Nonstop
        DCA 9:30 AM
        Boston - Washington D.C. | Thu, Sep 24 | Delta Air Lines
        BWI 10:00 PM
        1h 39m
        Nonstop
        BOS 11:39 PM
        Washington D.C. - Boston | Mon, Sep 28 | Delta Air Lines
        $365
        13% off
        $420 $365
      • BOS 3:36 PM
        1h 44m
        Nonstop
        DCA 5:20 PM
        Boston - Washington D.C. | Thu, Sep 24 | Jetblue Airways
        DCA 8:55 PM
        1h 45m
        Nonstop
        BOS 10:40 PM
        Washington D.C. - Boston | Mon, Sep 28 | Jetblue Airways
        $369
        12% off
        $420 $369
      • BOS 1:00 PM
        17h 25m
        1 stop
        WAS 2:00 PM
        Boston - Washington D.C. | Sun, Sep 13 | Normal Airline
        WAS 3:00 PM
        6h
        Nonstop
        BOS 4:00 PM
        Washington D.C. - Boston | Tue, Sep 15 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        BOS 9:45 PM
        1h 52m
        Nonstop
        DCA 11:37 PM
        Boston - Washington D.C. | Tue, Oct 20 | Delta Air Lines
        $50 $65
        23% off
        23% off
        $65 $50
      • BOS 7:31 PM
        1h 51m
        Nonstop
        DCA 9:22 PM
        Boston - Washington D.C. | Tue, Nov 3 | American Airlines
        $52 $65
        20% off
        20% off
        $65 $52
      • BOS 9:35 PM
        1h 55m
        Nonstop
        DCA 11:30 PM
        Boston - Washington D.C. | Tue, Oct 13 | Delta Air Lines
        $55 $65
        15% off
        15% off
        $65 $55
      • BOS 9:15 PM
        1h 51m
        Nonstop
        DCA 11:06 PM
        Boston - Washington D.C. | Tue, Oct 20 | American Airlines
        $56
        14% off
        $65 $56
      • BOS 9:45 PM
        1h 52m
        Nonstop
        DCA 11:37 PM
        Boston - Washington D.C. | Wed, Nov 4 | Delta Air Lines
        $57
        12% off
        $65 $57
      • BOS 3:55 PM
        1h 58m
        Nonstop
        DCA 5:53 PM
        Boston - Washington D.C. | Wed, Oct 7 | Delta Air Lines
        $57
        12% off
        $65 $57
      • BOS 9:45 PM
        1h 50m
        Nonstop
        DCA 11:35 PM
        Boston - Washington D.C. | Wed, Sep 30 | Delta Air Lines
        $57
        12% off
        $65 $57
      • BOS 3:55 PM
        1h 53m
        Nonstop
        DCA 5:48 PM
        Boston - Washington D.C. | Sat, Oct 3 | Delta Air Lines
        $57
        12% off
        $65 $57
      • BOS 10:20 AM
        1h 52m
        Nonstop
        DCA 12:12 PM
        Boston - Washington D.C. | Thu, Oct 1 | Delta Air Lines
        $57
        12% off
        $65 $57
      • BOS 8:15 PM
        1h 58m
        Nonstop
        DCA 10:13 PM
        Boston - Washington D.C. | Sat, Oct 31 | Delta Air Lines
        $57
        12% off
        $65 $57
      • BOS 1:00 PM
        17h 25m
        1 stop
        WAS 2:00 PM
        Boston - Washington D.C. | Sun, Sep 13 | Normal Airline
        Find more flights
        Find more flights

Flight.News
Flights from Boston to Washington D.C. operate an average of 70 times per day over the past 7 days, with a 29.9% on-time departure rate and a 71.6% on-time arrival rate.

Which airlines are the most popular for Boston to Washington D.C. flights?

The most popular airlines flying from Boston to Washington D.C. are Jetblue Airways, American Airlines, and Delta Air Lines, among 4 carriers on this route. Delta Air Lines offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
Jetblue Airways logo Jetblue Airways
American Airlines logo American Airlines
Delta Air Lines logo Delta Air Lines
United Airlines logo United Airlines
Airlines are determined based on actual purchased flight tickets from Boston to Washington D.C. according to previous 12 months data from Trip.com.

Flight Info | Boston to Washington D.C.

The distance between Boston and Washington D.C. is approximately 639.48 km. It takes around 1 hour 51 minutes on average to fly from Boston to Washington D.C.. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price $50
Cheapest round-trip ticket price $103
Off-season for travel October
Peak season for travel July
Flight distance 639.48 km
Average flight time 1 hour 51 minutes
Popular airline Jetblue Airways
Frequency ～106/week
Flight statistics for the Boston–Washington D.C. route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Boston to Washington D.C.

Which month has the cheapest one-way flights from Boston to Washington D.C.?

The average price of one-way flights from Boston to Washington D.C. purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Boston to Washington D.C. is January, with an average price of $141; while the month with the highest flight price is usually August, with an average price of up to $229.

$229
$185
$141
$97
    Cheapest
  • $178
    Sep
  • $178
    Oct
  • $153
    Nov
  • $162
    Dec
  • $141
    Jan
  • $155
    Feb
  • $171
    Mar
  • $209
    Apr
  • $162
    May
  • $220
    Jun
  • $216
    Jul
  • $229
    Aug

What is the cheapest month for round-trip flights from Boston to Washington D.C.?

Average price of round-trip flights from Boston to Washington D.C. purchased by Trip.com users by month over the past 12 months

According to historical data from Trip.com, the lowest prices for flights from Boston to Washington D.C. are found during November, with an average price of $240. Conversely, the highest prices are found during September, with an average price of up to $403.

$403
$322
$240
$159
    Cheapest
  • $403
    Sep
  • $244
    Oct
  • $240
    Nov
  • $254
    Dec
  • $259
    Jan
  • $249
    Feb
  • $367
    Mar
  • $355
    Apr
  • $299
    May
  • $378
    Jun
  • $289
    Jul
  • $240
    Aug

Frequently Asked Questions

  • What are the cheapest flights from Boston to Washington D.C. (BOS-WAS)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as $50 on Cheapest nonstop routes (e.g. BOS to DCA on Tue, Oct 20), while Delta Air Lines offers Cheapest nonstop round-trips from $103 departing on Wed, Oct 7 and returning on Wed, Oct 14.
  • At the moment, you can catch a nonstop flight from Boston to Washington D.C. with the following airlines, including: Jetblue Airways American Airlines Delta Air Lines United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 1 hour 51 minutes to fly from Boston (BOS) to Washington D.C. (WAS).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to Washington D.C. is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 156 flight per week flying from Boston to Washington D.C.. You can check the weekly schedule for popular airlines on this route below: Jetblue Airways: S/M/T/W/T/-/S -- B6455 (06:03)
  • To find best deals on flights from Boston to Washington D.C., you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Oct 20, with one-way flights priced at just $50.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Washington D.C. travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Boston to Washington D.C. is October, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Boston to Washington D.C. on September 16, 2026 with American Airlines, with prices starting at $103.
  • You can arrive at any of the following airports in Washington D.C.: Dulles International Airport (IAD), and Ronald Reagan Washington National Airport (DCA). Flights from Boston Logan International Airport to Ronald Reagan Washington National Airport (BOS-DCA) are by far the most popular option for this route.
  • The time difference between Washington D.C. and Boston is 0m.
  • Tickets can only be changed or canceled if permitted by airline policy. 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. However, 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Boston to Washington D.C. is $161. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Boston to Washington D.C. is $282. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Boston and Washington D.C., choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Jetblue Airwaysare the most popular budget airlines flying from Boston to Washington D.C.. Check baggage, seat and payment fees before comparing the final price.

Explore More Popular Flights

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.