$377+ Cheap flights from Seattle (SEA) to Iaşi (IAS)
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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IAS
Apr 21 — Apr 281
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Iaşi with Cheapflights
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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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Cheapest flights from Seattle to IaşiExplore the most affordable flight options available from Seattle to Iaşi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.
Explore the most affordable flight options available from Seattle to Iaşi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.
This FlightHub deal was found by Cheapflights users on 3/18. 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.
Wed 9/98:10 am
SEA
- IAS
2 stops21h 10m
Austrian Airlines
Wed 9/235:20 am
IAS
- SEA
2 stops24h 43m
Austrian Airlines
Deal found 3/18![Austrian Airlines logo]()
$771
This FlightHub deal was found by Cheapflights users on 3/18. 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.
Tue 9/86:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Tue 9/224:00 pm
IAS
- SEA
2 stops29h 55m
Lufthansa
Deal found 3/18![Lufthansa logo]()
$776
This KAYAK deal was found by Cheapflights users on 3/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:10 am
SEA
- IAS
2 stops31h 10m
Austrian Airlines
Tue 9/224:00 pm
IAS
- SEA
2 stops38h 03m
Austrian Airlines
Deal found 3/18![Austrian Airlines logo]()
$784
This Justfly.com deal was found by Cheapflights users on 3/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:00 am
SEA
- IAS
2 stops32h 20m
Austrian Airlines
Mon 4/274:00 pm
IAS
- SEA
2 stops38h 53m
Austrian Airlines
Deal found 3/21![Austrian Airlines logo]()
$789
This FlightHub deal was found by Cheapflights users on 3/21. 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.
Sun 4/196:50 pm
SEA
- IAS
2 stops34h 30m
Multiple Airlines
Mon 4/274:00 pm
IAS
- SEA
2 stops38h 53m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$792
This KAYAK deal was found by Cheapflights users on 3/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Mon 9/215:20 am
IAS
- SEA
2 stops40h 35m
Lufthansa
Deal found 3/18![Lufthansa logo]()
$799
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:00 am
SEA
- IAS
2 stops21h 20m
Austrian Airlines
Mon 4/274:00 pm
IAS
- SEA
2 stops38h 53m
Austrian Airlines
Deal found 3/21![Austrian Airlines logo]()
$802
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 pm
SEA
- IAS
2 stops20h 30m
Lufthansa
Wed 4/295:20 am
IAS
- SEA
2 stops17h 00m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$811
This FlightHub deal was found by Cheapflights users on 3/20. 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.
Sun 4/196:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Sun 4/264:00 pm
IAS
- SEA
2 stops54h 20m
Lufthansa
Deal found 3/20![Lufthansa logo]()
$813
This KAYAK deal was found by Cheapflights users on 3/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Sun 9/204:00 pm
IAS
- SEA
2 stops53h 55m
Lufthansa
Deal found 3/18![Lufthansa logo]()
$819
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 pm
SEA
- IAS
2 stops20h 30m
Lufthansa
Sun 4/264:00 pm
IAS
- SEA
2 stops54h 20m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$831
This KAYAK deal was found by Cheapflights users on 3/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:10 am
SEA
- IAS
2 stops21h 10m
Austrian Airlines
Fri 9/185:20 am
IAS
- SEA
2 stops23h 39m
Austrian Airlines
Deal found 3/18![Austrian Airlines logo]()
$834
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 March 22, 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 March 22, 2026.
This Justfly.com deal was found by Cheapflights users on 3/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:00 am
SEA
- IAS
2 stops32h 20m
Austrian Airlines
Mon 4/274:00 pm
IAS
- SEA
2 stops38h 53m
Austrian Airlines
Deal found 3/21![Austrian Airlines logo]()
$789
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Sat 4/254:00 pm
IAS
- SEA
2 stops30h 20m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$861
This Mytrip deal was found by Cheapflights users on 3/21. 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.
Mon 4/203:40 pm
SEA
- IAS
3 stops23h 40m
Multiple Airlines
Mon 4/275:20 am
IAS
- SEA
3 stops23h 25m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,021
This KAYAK deal was found by Cheapflights users on 3/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Wed 7/154:00 pm
IAS
- SEA
2 stops53h 55m
Lufthansa
Deal found 3/20![Lufthansa logo]()
$1,171
This Mytrip deal was found by Cheapflights users on 3/21. 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.
Sun 4/197:00 pm
SEA
- IAS
3 stops34h 20m
Multiple Airlines
Sun 4/264:00 pm
IAS
- SEA
3 stops36h 45m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,181
This KAYAK deal was found by Cheapflights users on 3/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/56:50 pm
SEA
- IAS
2 stops44h 30m
Lufthansa
Wed 7/155:20 am
IAS
- SEA
2 stops21h 39m
Lufthansa
Deal found 3/20![Lufthansa logo]()
$1,182
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 4/167:10 pm
SEA
- IAS
1 stop20h 20m
Multiple Airlines
Thu 4/235:45 am
IAS
- SEA
2 stops38h 51m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,198
This Trip.com deal was found by Cheapflights users on 3/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/241:19 pm
SEA
- IAS
2 stops21h 51m
Multiple Airlines
Mon 5/49:50 pm
IAS
- SEA
1 stop29h 20m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$1,227
This Kiwi.com deal was found by Cheapflights users on 3/21. 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.
Sun 4/197:10 pm
SEA
- IAS
1 stop20h 20m
Multiple Airlines
Sat 4/255:45 am
IAS
- SEA
2 stops24h 07m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,245
This Trip.com deal was found by Cheapflights users on 3/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 pm
SEA
- IAS
2 stops21h 20m
Multiple Airlines
Mon 5/45:20 am
IAS
- SEA
3 stops24h 33m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$1,291
Last-minute flights from Seattle to IaşiDiscover last-minute flight deals from Seattle to Iaşi. Data last updated March 22, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Iaşi. Data last updated March 22, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 am
SEA
- IAS
2 stops32h 20m
Austrian Airlines
Wed 4/295:20 am
IAS
- SEA
2 stops25h 33m
Austrian Airlines
Deal found 3/21![Austrian Airlines logo]()
$852
This FlightHub deal was found by Cheapflights users on 3/21. 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.
Sun 4/196:50 pm
SEA
- IAS
2 stops34h 30m
Multiple Airlines
Mon 4/274:00 pm
IAS
- SEA
2 stops38h 53m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$792
This FlightHub deal was found by Cheapflights users on 3/20. 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.
Sun 4/196:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Sun 4/264:00 pm
IAS
- SEA
2 stops54h 20m
Lufthansa
Deal found 3/20![Lufthansa logo]()
$813
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:50 pm
SEA
- IAS
2 stops34h 30m
Multiple Airlines
Sun 4/264:00 pm
IAS
- SEA
2 stops54h 20m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$842
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Sat 4/254:00 pm
IAS
- SEA
2 stops30h 20m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$861
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Fri 4/244:00 pm
IAS
- SEA
2 stops54h 20m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$881
This Justfly.com deal was found by Cheapflights users on 3/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:00 am
SEA
- IAS
2 stops32h 20m
Austrian Airlines
Mon 4/274:00 pm
IAS
- SEA
2 stops38h 53m
Austrian Airlines
Deal found 3/21![Austrian Airlines logo]()
$789
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:10 pm
SEA
- IAS
2 stops25h 10m
Lufthansa
Sun 4/264:00 pm
IAS
- SEA
2 stops54h 20m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$843
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:00 am
SEA
- IAS
2 stops21h 20m
Austrian Airlines
Mon 4/274:00 pm
IAS
- SEA
2 stops38h 53m
Austrian Airlines
Deal found 3/21![Austrian Airlines logo]()
$802
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 pm
SEA
- IAS
2 stops20h 30m
Lufthansa
Wed 4/295:20 am
IAS
- SEA
2 stops17h 00m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$811
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 pm
SEA
- IAS
2 stops20h 30m
Lufthansa
Sun 4/264:00 pm
IAS
- SEA
2 stops54h 20m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$831
This Justfly.com deal was found by Cheapflights users on 3/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:00 am
SEA
- IAS
2 stops22h 20m
Multiple Airlines
Mon 5/44:00 pm
IAS
- SEA
2 stops30h 20m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$840
One-way flights from Seattle to IaşiSearch for one-way flight options from Seattle to Iaşi. Find affordable one-way fares based on user searches. Data last updated March 22, 2026.
Search for one-way flight options from Seattle to Iaşi. Find affordable one-way fares based on user searches. Data last updated March 22, 2026.
This FlightHub deal was found by Cheapflights users on 3/21. 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.
Tue 7/146:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$377
This Expedia deal was found by Cheapflights users on 3/21. 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.
Wed 7/152:10 pm
SEA
- IAS
2 stops15h 10m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$386
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/122:10 pm
SEA
- IAS
2 stops49h 10m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$418
This Lufthansa deal was found by Cheapflights users on 3/21. 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.
Sat 7/186:50 pm
SEA
- IAS
2 stops20h 30m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 7/134:35 pm
SEA
- IAS
2 stops42h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 7/1410:30 am
SEA
- IAS
3 stops36h 20m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 7/1510:30 am
SEA
- IAS
3 stops26h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$462
This FlightHub deal was found by Cheapflights users on 3/21. 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 7/166:50 pm
SEA
- IAS
2 stops34h 30m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$465
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:50 pm
SEA
- IAS
2 stops44h 30m
Lufthansa
Deal found 3/21![Lufthansa logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 3/21. 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.
Sun 7/122:10 pm
SEA
- IAS
3 stops24h 15m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$480
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 7/187:10 pm
SEA
- IAS
1 stop17h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$560
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 7/172:10 pm
SEA
- IAS
3 stops35h 10m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$570
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 March 22, 2026.
Round-trip from | $771 (FlightHub) |
|---|---|
One-way from | $377 (FlightHub) |
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 2,558,603 searches. Data last updated March 22, 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 - IAS
SEAIAS
Seattle/Tacoma Intl
Mon 4/20
7:00 am-1:20 am
2 stops32h 20m
Iasi
Mon 4/27
4:00 pm-8:53 pm
2 stops38h 53m
$789
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Sun 4/19
6:50 pm-3:20 pm
2 stops34h 30m
Iasi
Sat 4/25
4:00 pm-12:20 pm
2 stops30h 20m
$861
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Mon 4/20
3:40 pm-1:20 am
3 stops23h 40m
Iasi
Mon 4/27
5:20 am-6:45 pm
3 stops23h 25m
$1,021
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Fri 7/10
6:50 pm-3:20 pm
2 stops34h 30m
Iasi
Wed 7/15
4:00 pm-11:55 am
2 stops53h 55m
$1,171
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Sun 4/19
7:00 pm-3:20 pm
3 stops34h 20m
Iasi
Sun 4/26
4:00 pm-6:45 pm
3 stops36h 45m
$1,181
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Sun 7/5
6:50 pm-1:20 am
2 stops44h 30m
Iasi
Wed 7/15
5:20 am-4:59 pm
2 stops21h 39m
$1,182
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Thu 4/16
7:10 pm-1:30 am
1 stop20h 20m
Iasi
Thu 4/23
5:45 am-10:36 am
2 stops38h 51m
$1,198
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Fri 4/24
1:19 pm-9:10 pm
2 stops21h 51m
Iasi
Mon 5/4
9:50 pm-5:10 pm
1 stop29h 20m
$1,227
Quickest round-trip
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Sun 4/19
7:10 pm-1:30 am
1 stop20h 20m
Iasi
Sat 4/25
5:45 am-7:52 pm
2 stops24h 07m
$1,245
SeattleIaşi
SEA - IAS
SEAIAS
Seattle/Tacoma Intl
Sat 4/25
6:00 pm-1:20 am
2 stops21h 20m
Iasi
Mon 5/4
5:20 am-7:53 pm
3 stops24h 33m
$1,291
Showing 1-10 of 16 resultsSorted by cheapest first
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.
Reviews of airlines servicing Iaşi
Get insights into the airlines that provide service to Iaşi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Iaşi. Reviews last updated March 22, 2026.
See what other customers who have flown with Lufthansa from Seattle to Iaşi have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.6
Entertainment
6.4
Boarding
7.0
Comfort
6.8
Food
6.3
Overall
6.8
Reviews
1 / 20
6.0
GoodAnonymous,Dec 2025
SFO - MUC
Crew
7.6
Entertainment
6.4
Boarding
7.0
Comfort
6.8
Food
6.3
Overall
6.8
Reviews
1 / 20
6.0
GoodAnonymous,Dec 2025
SFO - MUC
Related info for your journey
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Alternative routes for Seattle to Iaşi
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Complete your trip
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Other flights to Iaşi
Explore flights to Iaşi departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 22, 2026.
Seattle and Iaşi flights
Browse other Seattle and Iaşi flight options. Last updated on March 22, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on March 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Seattle to Iaşi
Discover the top airline that operate flights from Seattle 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 March 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$696 | Average$983 | FlexibilityNo cancel fee | On-time76% |