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$647+ Cheap flights from Iaşi (IAS) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAS — SEA
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 November 13, 2025.

This KLM deal was found by Cheapflights users on 11/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:25 amIAS - SEA
2 stops36h 20mKLM
Mon 12/13:05 pmSEA - IAS
2 stops22h 25mKLM
Deal found 11/12$1,189
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 11/279:00 pmIAS - SEA
2 stops34h 15mMultiple Airlines
Mon 12/17:20 pmSEA - IAS
1 stop21h 00mMultiple Airlines
Deal found 11/12$1,244
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/188:20 pmIAS - SEA
1 stop30h 45mMultiple Airlines
Sun 12/142:43 pmSEA - IAS
2 stops32h 17mMultiple Airlines
Deal found 11/11$1,473
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/188:20 pmIAS - SEA
1 stop30h 45mMultiple Airlines
Sat 12/1311:08 amSEA - IAS
2 stops44h 42mMultiple Airlines
Deal found 11/11$1,489
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/188:20 pmIAS - SEA
1 stop30h 45mMultiple Airlines
Tue 12/1611:05 pmSEA - IAS
2 stops23h 55mMultiple Airlines
Deal found 11/11$1,516
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/122:30 pmIAS - SEA
1 stop36h 35mMultiple Airlines
Sun 12/142:43 pmSEA - IAS
2 stops32h 17mMultiple Airlines
Deal found 11/11$1,522
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/188:20 pmIAS - SEA
1 stop30h 45mMultiple Airlines
Mon 12/1511:08 amSEA - IAS
2 stops44h 42mMultiple Airlines
Deal found 11/11$1,536
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/122:30 pmIAS - SEA
1 stop36h 35mMultiple Airlines
Sat 12/1311:08 amSEA - IAS
2 stops44h 42mMultiple Airlines
Deal found 11/11$1,538
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/158:20 pmIAS - SEA
1 stop30h 45mMultiple Airlines
Sun 12/142:43 pmSEA - IAS
2 stops32h 17mMultiple Airlines
Deal found 11/11$1,559
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/122:30 pmIAS - SEA
1 stop36h 35mMultiple Airlines
Tue 12/1611:05 pmSEA - IAS
2 stops23h 55mMultiple Airlines
Deal found 11/11$1,565
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/158:20 pmIAS - SEA
1 stop30h 45mMultiple Airlines
Sat 12/1311:08 amSEA - IAS
2 stops44h 42mMultiple Airlines
Deal found 11/11$1,575

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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$853
(Austrian Airlines)

One-way from

$647
(Kiwi.com)
Provider with most accurate pricing for Iasi-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Iasi-Seattle/Tacoma Intl flights.
Search Deals
From Iasi to Seattle/Tacoma Intl
Search Deals
One-way flight from Iasi to Seattle/Tacoma Intl
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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 November 13, 2025.
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

Fri 4/10

5:20 am-7:00 pm

2 stops23h 40m

Seattle/Tacoma Intl

Sun 4/19

7:00 am-3:20 pm

2 stops22h 20m

$853

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Thu 11/27

9:25 am-11:45 am

2 stops36h 20m

Seattle/Tacoma Intl

Mon 12/1

3:05 pm-11:30 pm

2 stops22h 25m

$1,189

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Thu 5/7

4:00 pm-8:10 pm

2 stops38h 10m

Seattle/Tacoma Intl

Mon 5/11

7:00 am-1:20 am

2 stops32h 20m

$1,228

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Fri 4/10

5:20 am-4:59 pm

3 stops21h 39m

Seattle/Tacoma Intl

Sun 4/19

8:00 am-12:05 am

3 stops30h 05m

$1,233

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Thu 11/27

9:00 pm-9:15 pm

2 stops34h 15m

Seattle/Tacoma Intl

Mon 12/1

7:20 pm-2:20 am

1 stop21h 00m

$1,244

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Thu 5/7

4:00 pm-12:20 pm

2 stops30h 20m

Seattle/Tacoma Intl

Mon 5/11

2:10 pm-3:20 pm

2 stops39h 10m

$1,258

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Fri 4/10

2:45 pm-1:25 pm

1 stop32h 40m

Seattle/Tacoma Intl

Sun 4/19

10:55 am-1:45 pm

2 stops40h 50m

$4,130

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Tue 11/18

6:50 pm-3:40 pm

3 stops54h 50m

$647

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

  • 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.

  • How long is the flight from Iaşi to Seattle?

    There are many flights that can get you from Iaşi to Seattle in 23h 40m. Fly via Austrian Airlines or KLM to get the fastest option. Iaşi and Seattle are separated by a distance of 5648 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Tukwila
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Cle Elum
Marysville
Puyallup
Federal Way
Fife
Issaquah
Aberdeen

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