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Iaşi

$580+ Cheap flights from Washington to Iaşi (IAS)

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IAS
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Washington to Iaşi

Best flights from Washington to Iaşi
Discover carefully curated flight deals from Washington to Iaşi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

This FlightHub deal was found by Cheapflights users on 12/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/292:00 pmSEA - IAS
2 stops15h 20mLufthansa
Fri 2/134:05 pmIAS - SEA
2 stops30h 05mLufthansa
Deal found 12/12$580
This Mytrip deal was found by Cheapflights users on 12/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/297:00 pmSEA - IAS
2 stops18h 55mMultiple Airlines
Thu 2/55:25 amIAS - SEA
2 stops21h 40mMultiple Airlines
Deal found 12/15$774
This FlightHub deal was found by Cheapflights users on 12/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:50 pmSEA - IAS
2 stops34h 30mLufthansa
Fri 4/245:20 amIAS - SEA
2 stops17h 00mLufthansa
Deal found 12/15$808
This oojo deal was found by Cheapflights users on 12/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/297:00 pmSEA - IAS
2 stops18h 55mMultiple Airlines
Sat 2/145:25 amIAS - SEA
2 stops21h 40mMultiple Airlines
Deal found 12/12$878
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2911:06 amSEA - IAS
2 stops25h 49mMultiple Airlines
Fri 2/131:55 pmIAS - SEA
1 stop32h 40mMultiple Airlines
Deal found 12/12$2,215

Find flight deals from Washington to Iaşi

Keep the following information in mind while searching for Washington to Iaşi flight deals. Data was last updated December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$580
(FlightHub)
Provider with most accurate pricing for Seattle/Tacoma Intl-Iasi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Iasi flights.
Search Deals
From Washington to Iasi
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Iaşi 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 December 16, 2025.
Use the filters below to find and compare flights from Washington to Iaşi that are best for you.

Fly from

Washington

Fly to

Iaşi

Route

Depart

Return

Price

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Thu 1/29

2:00 pm-3:20 pm

2 stops15h 20m

Iasi

Fri 2/13

4:05 pm-12:10 pm

2 stops30h 05m

$580

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Thu 1/29

7:00 pm-11:55 pm

2 stops18h 55m

Iasi

Thu 2/5

5:25 am-5:05 pm

2 stops21h 40m

$774

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Fri 4/17

6:50 pm-3:20 pm

2 stops34h 30m

Iasi

Fri 4/24

5:20 am-12:20 pm

2 stops17h 00m

$808

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Thu 1/29

7:00 pm-11:55 pm

2 stops18h 55m

Iasi

Sat 2/14

5:25 am-5:05 pm

2 stops21h 40m

$878

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Thu 1/29

11:06 am-10:55 pm

2 stops25h 49m

Iasi

Fri 2/13

1:55 pm-12:35 pm

1 stop32h 40m

$2,215

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Best time to book a flight from Washington to Iaşi

Have a flexible travel schedule? Discover the best time to fly to Iaşi 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 Iaşi
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington to Iaşi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Iaşi from Washington?

    Most people fly into Iasi (IAS) if they book a flight to Iaşi from Washington. Iasi is conveniently located just 1.3 mi from Iaşi’s city center.

  • How long is the flight from State of Washington to Iaşi?

    There are many flights that can get you from State of Washington to Iaşi in 15h 20m. Fly via Lufthansa to get the fastest option. The distance between State of Washington and Iaşi is about 5648 mi.

  • Can I find deals for flights from Washington to Iaşi that include hotel bookings?

    Yes. In addition to deals on Washington to Iaşi flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Iaşi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Iaşi.

  • Can I find deals for business class flights from Washington to Iaşi?

    Yes. Cheapflights offers flight deals from Washington to Iaşi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Washington to Iaşi

Discover the top airline that operate flights from Washington to Iaşi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$769Average$996FlexibilityNo cancel feeOn-time76%

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