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$836+ Cheap flights from Iaşi (IAS) to Seattle (SEA)

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAS — SEA
Feb 5 — Feb 121
Thu 2/5
Thu 2/12
1 adult, Economy
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Cheap flight deals from Iaşi to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Iaşi (IAS) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 6, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$914
(Lucky2Go)
Provider with most accurate pricing for Iasi-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Iasi-Seattle/Tacoma Intl flights.
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From Iasi to Seattle/Tacoma Intl
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Find flight deals from Iaşi to Seattle

Cheapest flights from Iaşi to Seattle
Explore the most affordable flight options available from Iaşi to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 6, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Wed 9/3012:15 pmIAS - SEA
2 stops42h 28mMultiple Airlines
Sun 10/186:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$836
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 9/298:50 pmIAS - SEA
2 stops34h 40mMultiple Airlines
Tue 10/136:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$877
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Wed 9/3012:15 pmIAS - SEA
2 stops32h 17mMultiple Airlines
Tue 10/136:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$879
This Austrian Airlines deal was found by Cheapflights users on 1/6. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:00 pmIAS - SEA
2 stops38h 10mAustrian Airlines
Thu 10/158:00 amSEA - IAS
2 stops21h 20mAustrian Airlines
Deal found 1/6$884
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Sat 10/35:25 amIAS - SEA
2 stops26h 05mMultiple Airlines
Tue 10/136:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$913
This Lucky2Go deal was found by Cheapflights users on 1/5. 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 Lucky2Go is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/214:05 pmIAS - SEA
3 stops37h 47mMultiple Airlines
Sun 1/252:35 pmSEA - IAS
3 stops36h 50mMultiple Airlines
Deal found 1/5$914
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 10/18:50 pmIAS - SEA
2 stops32h 27mMultiple Airlines
Tue 10/136:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$920
This FlightHub deal was found by Cheapflights users on 1/6. 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 10/25:20 amIAS - SEA
2 stops23h 39mAustrian Airlines
Wed 10/148:00 amSEA - IAS
2 stops21h 20mAustrian Airlines
Deal found 1/6$929
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Fri 10/28:50 pmIAS - SEA
2 stops34h 40mMultiple Airlines
Fri 10/166:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$943
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Tue 9/298:50 pmIAS - SEA
2 stops34h 40mMultiple Airlines
Fri 10/166:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$945
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Wed 9/3012:15 pmIAS - SEA
2 stops32h 17mMultiple Airlines
Fri 10/166:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$947
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Mon 9/285:25 amIAS - SEA
2 stops23h 52mMultiple Airlines
Tue 10/136:55 pmSEA - IAS
1 stop16h 15mMultiple Airlines
Deal found 1/6$956

Cheapflights Fare Finder

 
Customize your flight search to find flights from Iaşi to Seattle 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 6, 2026.
Use the filters below to find and compare flights from Iaşi to Seattle that are best for you.

Fly from

Iaşi

Fly to

Seattle

Route

Depart

Return

Price

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Wed 1/21

4:05 pm-7:52 pm

3 stops37h 47m

Seattle/Tacoma Intl

Sun 1/25

2:35 pm-1:25 pm

3 stops36h 50m

$914

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

  • Most accurate provider: When it comes to deals on Iaşi-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Iaşi-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Iaşi-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Iaşi-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Iaşi-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Iaşi to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Iaşi 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.

Related info for your journey

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

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

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

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

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

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

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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Marysville
Fife
Aberdeen
Shoreline
Centralia
Federal Way
Chehalis
Tumwater

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