$917+ Cheap flights from Seattle (SEA) 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IAS
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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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
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Best
Best flights from Seattle to IaşiDiscover carefully curated flight deals from Seattle to Iaşi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Seattle to Iaşi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/81:50 pm -
2 stops39h 30m
Mon 3/84:05 pm -
2 stops38h 35m
Deal found 11/1![Multiple Airlines logo]()
$917
This Turkish Airlines deal was found by Cheapflights users on 11/3. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/177:05 pm -
2 stops39h 25m
Thu 1/218:30 pm -
2 stops30h 40m
Deal found 11/3![Turkish Airlines logo]()
$1,304
Find flight deals from Seattle to Iaşi
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Iaşi (IAS). 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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $917 (Expedia) |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 7,457,451 searches. Data last updated November 4, 2026.
Use the filters below to find and compare flights from Seattle to Iaşi that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleIaşi
SEA Seattle/Tacoma Intl - IAS Iasi
SEAIAS
Seattle/Tacoma Intl
Mon 2/8
1:50 pm-3:20 pm
2 stops39h 30m
Iasi
Mon 3/8
4:05 pm-8:40 pm
2 stops38h 35m
$917
Quickest round-trip
SeattleIaşi
SEA Seattle/Tacoma Intl - IAS Iasi
SEAIAS
Seattle/Tacoma Intl
Sun 1/17
7:05 pm-8:30 pm
2 stops39h 25m
Iasi
Thu 1/21
8:30 pm-5:10 pm
2 stops30h 40m
$1,304
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Seattle-Iaşi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Iaşi flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Iaşi flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Iaşi flights, Cheapflights users trust FlightHub the most. FlightHub 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 Seattle-Iaşi 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 Seattle to Iaşi
Have a flexible travel schedule? Discover the best time to fly to Iaşi from Seattle with our price prediction graph.
SEA-IAS
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
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