When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Iasi Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Iasi Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Iasi Airport?

As of September 2025, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Iasi Airport.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Iasi Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Iasi Airport.

What documentation or ID do you need to fly to Iasi Airport?

The travel and health documents required for your trip to Iasi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Iasi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$587 Cheap Flights from Seattle to Iaşi in 2025/26

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Find the cheapest flights from Seattle to Iaşi

Round-trip

One-way

Cheap round-trip flights

8:00 am - 3:20 pmSEA-IAS

22h 20m2 stops

4:05 pm - 8:10 pmIAS-SEA

37h 05m2 stops

$652Austrian Airlines

Find Deal

Thu, Mar 12 - Mon, Mar 16

3:10 pm - 3:20 pmSEA-IAS

38h 10m2 stops

4:05 pm - 1:20 pmIAS-SEA

55h 15m2 stops

$791Lufthansa

Find Deal

Wed, Dec 24 - Wed, Jan 7

2:00 pm - 3:20 pmSEA-IAS

39h 20m2 stops

4:05 pm - 1:20 pmIAS-SEA

55h 15m2 stops

$866Lufthansa

Find Deal

Mon, Dec 15 - Wed, Jan 7

3:10 pm - 3:20 pmSEA-IAS

38h 10m2 stops

4:05 pm - 1:20 pmIAS-SEA

55h 15m2 stops

$896Lufthansa

Find Deal

Wed, Dec 24 - Mon, Jan 5

2:00 pm - 3:20 pmSEA-IAS

39h 20m2 stops

4:05 pm - 1:20 pmIAS-SEA

55h 15m2 stops

$969Lufthansa

Find Deal

Tue, Dec 23 - Wed, Jan 7

2:00 pm - 3:20 pmSEA-IAS

39h 20m2 stops

4:05 pm - 1:20 pmIAS-SEA

55h 15m2 stops

$971Lufthansa

Find Deal

Mon, Dec 15 - Mon, Jan 5

2:00 pm - 3:20 pmSEA-IAS

15h 20m2 stops

4:05 pm - 1:20 pmIAS-SEA

55h 15m2 stops

$1,024Lufthansa

Find Deal

Tue, Dec 16 - Wed, Jan 7

2:00 pm - 3:20 pmSEA-IAS

39h 20m2 stops

4:05 pm - 1:20 pmIAS-SEA

55h 15m2 stops

$1,074Lufthansa

Find Deal

Tue, Dec 23 - Mon, Jan 5

2:00 pm - 3:20 pmSEA-IAS

15h 20m2 stops

4:05 pm - 1:20 pmIAS-SEA

55h 15m2 stops

$1,129Lufthansa

Find Deal

Tue, Dec 16 - Mon, Jan 5

7:00 pm - 12:20 amSEA-IAS

19h 20m1 stop

8:55 pm - 7:25 pmIAS-SEA

32h 30m2 stops

$1,221Multiple Airlines

Find Deal

Mon, Dec 15 - Tue, Jan 6

Lufthansa flights from Seattle to Iaşi

Our best Lufthansa deals on Seattle to Iaşi flight tickets

Lufthansa

Dec 24

SEA3:10 pmSeattle/Tacoma Intl

38h 10m

2 stops

IAS3:20 pmIasi

Jan 7

IAS4:05 pmIasi

55h 15m

2 stops

SEA1:20 pmSeattle/Tacoma Intl

$791

Find similar

Lufthansa

Dec 15

SEA2:00 pmSeattle/Tacoma Intl

39h 20m

2 stops

IAS3:20 pmIasi

Jan 7

IAS4:05 pmIasi

55h 15m

2 stops

SEA1:20 pmSeattle/Tacoma Intl

$866

Find similar

Lufthansa

Dec 24

SEA3:10 pmSeattle/Tacoma Intl

38h 10m

2 stops

IAS3:20 pmIasi

Jan 5

IAS4:05 pmIasi

55h 15m

2 stops

SEA1:20 pmSeattle/Tacoma Intl

$896

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Thu 3/12

8:00 am-3:20 pm

2 stops22h 20m

Iasi

Mon 3/16

4:05 pm-8:10 pm

2 stops37h 05m

$652

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Wed 12/24

3:10 pm-3:20 pm

2 stops38h 10m

Iasi

Wed 1/7

4:05 pm-1:20 pm

2 stops55h 15m

$791

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Mon 12/15

2:00 pm-3:20 pm

2 stops39h 20m

Iasi

Wed 1/7

4:05 pm-1:20 pm

2 stops55h 15m

$866

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Wed 12/24

3:10 pm-3:20 pm

2 stops38h 10m

Iasi

Mon 1/5

4:05 pm-1:20 pm

2 stops55h 15m

$896

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Tue 12/23

2:00 pm-3:20 pm

2 stops39h 20m

Iasi

Wed 1/7

4:05 pm-1:20 pm

2 stops55h 15m

$969

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Mon 12/15

2:00 pm-3:20 pm

2 stops39h 20m

Iasi

Mon 1/5

4:05 pm-1:20 pm

2 stops55h 15m

$971

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Tue 12/16

2:00 pm-3:20 pm

2 stops15h 20m

Iasi

Wed 1/7

4:05 pm-1:20 pm

2 stops55h 15m

$1,024

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Tue 12/23

2:00 pm-3:20 pm

2 stops39h 20m

Iasi

Mon 1/5

4:05 pm-1:20 pm

2 stops55h 15m

$1,074

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Tue 12/16

2:00 pm-3:20 pm

2 stops15h 20m

Iasi

Mon 1/5

4:05 pm-1:20 pm

2 stops55h 15m

$1,129

SeattleIaşi

SEA - IAS

SEAIAS

Seattle/Tacoma Intl

Mon 12/15

7:00 pm-12:20 am

1 stop19h 20m

Iasi

Tue 1/6

8:55 pm-7:25 pm

2 stops32h 30m

$1,221

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Seattle to Iaşi

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Iaşi?

The cheapest day to depart on your flight to Iaşi is on a Thursday when prices can be found for as low as $1,240. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Iaşi is Wednesday, with ticket prices averaging around $1,792.

What is the cheapest time of day to depart on your flight to Iaşi?

According to our data, the cheapest time of day to fly to Iaşi is in the morning. momondo users have found flights departing from Seattle to Iaşi in the morning for as low as $1,092. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Iaşi is at noon when prices are around $1,340.

When to book flights from Seattle to Iaşi

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Iaşi according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Iaşi (SEA to IAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Iaşi

Direct flights	None

There are no direct flights from Seattle to Iaşi. There are no popular flight routes from Seattle to Iaşi.

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How far is Seattle/Tacoma Intl to Iasi by plane?
The distance between Seattle/Tacoma Intl and Iasi is about 5638.5 mi. A reasonable flight in good conditions will take 15h 20m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Iasi Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Iasi Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Iasi Airport?
As of September 2025, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Iasi Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Iasi Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Iasi Airport.
What documentation or ID do you need to fly to Iasi Airport?
The travel and health documents required for your trip to Iasi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Iasi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Iaşi?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Iaşi is Lufthansa (100% of total bookings).

Best airlines flying from Seattle to Iaşi

Compare and see reviews for airlines that fly from Seattle to Iaşi with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $696	Free Cancellation	Rating 6.8 7,407 reviews		Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Iaşi?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Iaşi from Seattle.

Can I find flights from Seattle to Iaşi with flexible booking policies on momondo?

Yes. All flights to Iaşi from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Iaşi?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Iaşi.

I’m not ready to book a flight from Seattle to Iaşi right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Iaşi now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Iaşi and let you know when they change.