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Flights from Seattle to Hanoi

Find flight deals from Seattle to Hanoi for the next 3 months. Book one way flights from $360 or round trip flights from $832.

      • SEA 11:10 PM
        35h 35m
        1 stop
        HAN 12:45 AM
        Seattle - Hanoi | Wed, Sep 2 | Philippine Airlines
        HAN 1:45 AM
        32h 20m
        1 stop
        SEA 8:05 PM
        Hanoi - Seattle | Tue, Sep 8 | Philippine Airlines
        $832 $957
        13% off
        13% off
        $957 $832
      • SEA 11:10 PM
        24h 5m
        1 stop
        HAN 1:15 PM
        Seattle - Hanoi | Thu, Aug 20 | Philippine Airlines
        HAN 2:15 PM
        19h 50m
        1 stop
        SEA 8:05 PM
        Hanoi - Seattle | Thu, Aug 27 | Philippine Airlines
        $832 $957
        13% off
        13% off
        $957 $832
      • SEA 11:10 PM
        35h 35m
        1 stop
        HAN 12:45 AM
        Seattle - Hanoi | Wed, Sep 9 | Philippine Airlines
        HAN 1:45 AM
        32h 20m
        1 stop
        SEA 8:05 PM
        Hanoi - Seattle | Wed, Sep 16 | Philippine Airlines
        $832 $957
        13% off
        13% off
        $957 $832
      • SEA 11:10 PM
        24h 5m
        1 stop
        HAN 1:15 PM
        Seattle - Hanoi | Tue, Sep 8 | Philippine Airlines
        HAN 1:45 AM
        32h 20m
        1 stop
        SEA 8:05 PM
        Hanoi - Seattle | Tue, Sep 15 | Philippine Airlines
        $832
        13% off
        $957 $832
      • SEA 12:10 AM
        22h 5m
        1 stop
        HAN 12:15 PM
        Seattle - Hanoi | Wed, Aug 26 | Asiana Airlines
        HAN 11:30 PM
        30h 15m
        1 stop
        SEA 3:45 PM
        Hanoi - Seattle | Sun, Aug 30 | Asiana Airlines
        $843
        12% off
        $957 $843
      • SEA 12:10 AM
        22h 5m
        1 stop
        HAN 12:15 PM
        Seattle - Hanoi | Wed, Sep 9 | Asiana Airlines
        HAN 11:30 PM
        29h 45m
        1 stop
        SEA 3:15 PM
        Hanoi - Seattle | Sun, Sep 13 | Asiana Airlines
        $843
        12% off
        $957 $843
      • SEA 4:30 PM
        39h 45m
        1 stop
        HAN 10:15 PM
        Seattle - Hanoi | Thu, Sep 10 | All Nippon Airways
        HAN 11:35 PM
        28h 50m
        1 stop
        SEA 2:25 PM
        Hanoi - Seattle | Sun, Sep 13 | All Nippon Airways
        $846
        12% off
        $957 $846
      • SEA 4:30 PM
        39h 45m
        1 stop
        HAN 10:15 PM
        Seattle - Hanoi | Wed, Sep 9 | All Nippon Airways
        HAN 11:35 PM
        28h 50m
        1 stop
        SEA 2:25 PM
        Hanoi - Seattle | Sun, Sep 13 | All Nippon Airways
        $846
        12% off
        $957 $846
      • SEA 4:30 PM
        39h 45m
        1 stop
        HAN 10:15 PM
        Seattle - Hanoi | Thu, Sep 3 | All Nippon Airways
        HAN 11:35 PM
        28h 50m
        1 stop
        SEA 2:25 PM
        Hanoi - Seattle | Mon, Sep 7 | All Nippon Airways
        $849
        11% off
        $957 $849
      • SEA 10:15 AM
        39h 10m
        1 stop
        HAN 3:25 PM
        Seattle - Hanoi | Tue, Sep 15 | Singapore Airlines
        HAN 12:40 PM
        34h 5m
        1 stop
        SEA 8:45 AM
        Hanoi - Seattle | Mon, Sep 21 | Singapore Airlines
        $851
        11% off
        $957 $851
      • SEA 1:00 PM
        17h 25m
        1 stop
        HAN 2:00 PM
        Seattle - Hanoi | Sun, Jul 19 | Normal Airline
        HAN 3:00 PM
        6h
        Nonstop
        SEA 4:00 PM
        Hanoi - Seattle | Tue, Jul 21 | Normal Airline
        Find more flights
        Find more flights
      • SEA 11:10 PM
        35h 35m
        1 stop
        HAN 12:45 AM
        Seattle - Hanoi | Sun, Sep 6 | Philippine Airlines
        $360 $480
        25% off
        25% off
        $480 $360
      • SEA 11:10 PM
        35h 35m
        1 stop
        HAN 12:45 AM
        Seattle - Hanoi | Sun, Aug 30 | Philippine Airlines
        $403 $480
        16% off
        16% off
        $480 $403
      • SEA 11:10 PM
        35h 35m
        1 stop
        HAN 12:45 AM
        Seattle - Hanoi | Wed, Sep 9 | Philippine Airlines
        $403 $480
        16% off
        16% off
        $480 $403
      • SEA 11:10 PM
        35h 35m
        1 stop
        HAN 12:45 AM
        Seattle - Hanoi | Tue, Sep 8 | Philippine Airlines
        $403
        16% off
        $480 $403
      • SEA 11:10 PM
        35h 35m
        1 stop
        HAN 12:45 AM
        Seattle - Hanoi | Thu, Aug 27 | Philippine Airlines
        $409
        15% off
        $480 $409
      • SEA 11:10 PM
        24h 5m
        1 stop
        HAN 1:15 PM
        Seattle - Hanoi | Thu, Aug 6 | Philippine Airlines
        $410
        15% off
        $480 $410
      • SEA 11:10 PM
        24h 5m
        1 stop
        HAN 1:15 PM
        Seattle - Hanoi | Sun, Aug 16 | Philippine Airlines
        $411
        14% off
        $480 $411
      • SEA 11:10 PM
        35h 35m
        1 stop
        HAN 12:45 AM
        Seattle - Hanoi | Sun, Sep 13 | Philippine Airlines
        $413
        14% off
        $480 $413
      • SEA 4:30 PM
        39h 45m
        1 stop
        HAN 10:15 PM
        Seattle - Hanoi | Sun, Sep 6 | United Airlines
        $426
        11% off
        $480 $426
      • SEA 4:30 PM
        39h 45m
        1 stop
        HAN 10:15 PM
        Seattle - Hanoi | Mon, Aug 17 | United Airlines
        $427
        11% off
        $480 $427
      • SEA 1:00 PM
        17h 25m
        1 stop
        HAN 2:00 PM
        Seattle - Hanoi | Sun, Jul 19 | Normal Airline
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        Find more flights

Find cheap airlines flights from Seattle to Hanoi

You can choose from 7 airlines that fly from Seattle to Hanoi, including Korean Air, Asiana Airlines, and China Airlines. Philippine Airlines has lowest fares on this route.
Korean Air logo Korean Air
Asiana Airlines logo Asiana Airlines
China Airlines logo China Airlines
Qatar Airways logo Qatar Airways
All Nippon Airways logo All Nippon Airways
Alaska Airlines logo Alaska Airlines
EVA Air logo EVA Air
Airlines are determined based on actual purchased flight tickets from Seattle to Hanoi according to previous 12 months data from Trip.com.

Flight Info | Seattle to Hanoi

The distance between Seattle and Hanoi is approximately 10,994.34 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight price$360
Cheapest round-trip ticket price$832
Off-season for travelNovember
Peak season for travelJuly
Flight distance10,994.34 km
Popular airlineKorean Air
Flight statistics for the Seattle–Hanoi route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Seattle to Hanoi (SEA-HAN)?

    Based on Trip.com data, Philippine Airlines offers one-way fares as low as $360 on Cheapest nonstop routes (e.g. SEA to HAN on Sun, Sep 6), while Philippine Airlines offers Cheapest nonstop round-trips from $832 departing on Wed, Sep 2 and returning on Tue, Sep 8.
  • At the moment, you can catch a nonstop flight from Seattle to Hanoi with the following airlines, including: EVA Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Hanoi 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.
  • To find best deals on flights from Seattle to Hanoi, 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 Sun, Sep 6, with one-way flights priced at just $360.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Philippine Airlines.
    · 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 Hanoi travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Hanoi is November, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Seattle to Hanoi on July 20, 2026 with United Airlines, with prices starting at $961.
  • You can land at any one of the following hubs in Hanoi, with Seattle-Tacoma International Airport to Noi Bai International Airport (SEA-HAN) is by far the most common option on this route: Noi Bai International Airport (HAN).
  • The time difference between Hanoi and Seattle is 15h.
  • 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.

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.