$1,549+ Cheap flights from Washington to Haiphong (HPH)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HPH
Feb 28 — Mar 71
1 adult, Economy
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Cheapest flights from Washington to HaiphongExplore the most affordable flight options available from Washington to Haiphong. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
Explore the most affordable flight options available from Washington to Haiphong. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
This IEagle deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:15 pm
SEA
- HPH
2 stops50h 25m
Multiple Airlines
Tue 4/218:35 pm
HPH
- SEA
2 stops54h 50m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$1,549
This IEagle deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/284:05 pm
SEA
- HPH
2 stops61h 45m
Multiple Airlines
Mon 2/27:40 pm
HPH
- SEA
2 stops55h 55m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$1,789
Find flight deals from Washington to Haiphong
Keep the following information in mind while searching for Washington to Haiphong flight deals. Data was last updated January 29, 2026.
Round-trip from | $1,549 (IEagle) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Haiphong that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Washington to Haiphong that are best for you.
Fly from
Washington
Fly to
Haiphong
Route
Depart
Return
Price
SeattleHaiphong
SEA - HPH
SEAHPH
Seattle/Tacoma Intl
Fri 4/10
5:15 pm-8:00 pm
2 stops60h 45m
Haiphong Catbi
Wed 4/22
8:35 pm-1:25 pm
2 stops54h 50m
$1,549
SeattleHaiphong
SEA - HPH
SEAHPH
Seattle/Tacoma Intl
Thu 4/9
5:15 pm-9:40 am
2 stops50h 25m
Haiphong Catbi
Tue 4/21
8:35 pm-1:25 pm
2 stops54h 50m
$1,549
Best time to book a flight from Washington to Haiphong
Have a flexible travel schedule? Discover the best time to fly to Haiphong from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington to Haiphong
What is the cheapest month to book a flight from State of Washington to Haiphong?
Currently, September is the cheapest month in which you can book a flight from State of Washington to Haiphong (average of $542). Flying from State of Washington to Haiphong in June is currently the most expensive (average of $1,061). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.