HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$1,264+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAS — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Iaşi to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 30, 2025.

This Lufthansa deal was found by Cheapflights users on 10/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:05 pmIAS - SEA
2 stops30h 05mLufthansa
Mon 11/172:00 pmSEA - IAS
2 stops39h 20mLufthansa
Deal found 10/29$1,264
This Kiwi.com deal was found by Cheapflights users on 10/29. 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
Thu 12/187:00 pmSEA - IAS
2 stops38h 25mMultiple Airlines
Deal found 10/29$1,432
This oojo deal was found by Cheapflights users on 10/29. 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.
Tue 11/185:25 amIAS - SEA
2 stops45h 40mTurkish Airlines
Thu 12/187:00 pmSEA - IAS
2 stops18h 55mTurkish Airlines
Deal found 10/29$1,500

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,264
(Lufthansa)
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

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 October 30, 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

Thu 11/13

4:05 pm-12:10 pm

2 stops30h 05m

Seattle/Tacoma Intl

Mon 11/17

2:00 pm-3:20 pm

2 stops39h 20m

$1,264

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Tue 11/18

5:25 am-5:05 pm

2 stops45h 40m

Seattle/Tacoma Intl

Thu 12/18

7:00 pm-11:55 pm

2 stops18h 55m

$1,500

IaşiSeattle

IAS - SEA

IASSEA

Iasi

Tue 11/18

8:20 pm-5:05 pm

1 stop30h 45m

Seattle/Tacoma Intl

Wed 12/17

12:25 am-1:45 pm

2 stops27h 20m

$1,914

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

  • 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 30h 05m. Fly via Lufthansa or Turkish Airlines 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
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Iaşi to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Otopeni Intl to Seattle flights
Otopeni Intl to Portland flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.