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Cheap flights from Seattle to Billund from $544

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Billund departing on 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:00 pm - 1:20 pmSEA-BLL
14h 20m1 stop
United Airlines Logo
6:30 am - 9:01 pmBLL-SEA
23h 31m3 stops
$544United Airlines
Find Deal
Mon, Feb 23 - Fri, Feb 27
United Airlines Logo
11:59 pm - 1:40 pmSEA-BLL
28h 41m2 stops
United Airlines Logo
6:30 am - 9:01 pmBLL-SEA
23h 31m3 stops
$548United Airlines
Find Deal
Mon, Feb 23 - Fri, Feb 27
Lufthansa Logo
2:00 pm - 1:20 pmSEA-BLL
14h 20m1 stop
Lufthansa Logo
7:00 pm - 12:10 pmBLL-SEA
26h 10m1 stop
$554Lufthansa
Find Deal
Mon, Feb 23 - Fri, Feb 27
Lufthansa Logo
2:00 pm - 1:20 pmSEA-BLL
14h 20m1 stop
Lufthansa Logo
6:30 am - 1:20 pmBLL-SEA
15h 50m2 stops
$568Lufthansa
Find Deal
Mon, Feb 23 - Fri, Feb 27
United Airlines Logo
12:35 pm - 1:20 pmSEA-BLL
39h 45m2 stops
United Airlines Logo
2:15 pm - 9:12 pmBLL-SEA
39h 57m2 stops
$569United Airlines
Find Deal
Thu, Dec 25 - Sat, Jan 10
Delta Logo
2:05 pm - 5:55 pmSEA-BLL
18h 50m1 stop
Delta Logo
6:00 am - 4:13 pmBLL-SEA
19h 13m2 stops
$596Delta
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Wed, May 20 - Sun, May 24
Lufthansa Logo
10:00 am - 2:10 pmSEA-BLL
19h 10m2 stops
Lufthansa Logo
5:55 am - 6:59 pmBLL-SEA
22h 04m2 stops
$638Lufthansa
Find Deal
Wed, May 20 - Sun, May 24
Lufthansa Logo
2:10 pm - 2:10 pmSEA-BLL
15h 00m1 stop
Lufthansa Logo
5:55 am - 6:59 pmBLL-SEA
22h 04m2 stops
$643Lufthansa
Find Deal
Wed, May 20 - Sun, May 24
United Airlines Logo
5:02 am - 1:20 pmSEA-BLL
23h 18m2 stops
United Airlines Logo
2:15 pm - 10:43 pmBLL-SEA
41h 28m3 stops
$657United Airlines
Find Deal
Thu, Dec 25 - Sat, Jan 10
Lufthansa Logo
2:10 pm - 2:10 pmSEA-BLL
15h 00m1 stop
Lufthansa Logo
6:45 pm - 12:20 pmBLL-SEA
26h 35m1 stop
$660Lufthansa
Find Deal
Wed, May 20 - Sun, May 24

United Airlines flights from Seattle to Billund

Our best United Airlines deals on Seattle to Billund flight tickets
United Airlines
Feb 23
SEA2:00 pmSeattle/Tacoma Intl
14h 20m
1 stop
BLL1:20 pmBillund
Feb 27
BLL6:30 amBillund
23h 31m
3 stops
SEA9:01 pmSeattle/Tacoma Intl
$544
Find similar
United Airlines
Feb 23
SEA11:59 pmSeattle/Tacoma Intl
28h 41m
2 stops
BLL1:40 pmBillund
Feb 27
BLL6:30 amBillund
23h 31m
3 stops
SEA9:01 pmSeattle/Tacoma Intl
$548
Find similar
United Airlines
Dec 25
SEA12:35 pmSeattle/Tacoma Intl
39h 45m
2 stops
BLL1:20 pmBillund
Jan 10
BLL2:15 pmBillund
39h 57m
2 stops
SEA9:12 pmSeattle/Tacoma Intl
$569
Find similar

Lufthansa flights from Seattle to Billund

Our best Lufthansa deals on Seattle to Billund flight tickets
Lufthansa
Feb 23
SEA2:00 pmSeattle/Tacoma Intl
14h 20m
1 stop
BLL1:20 pmBillund
Feb 27
BLL7:00 pmBillund
26h 10m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$554
Find similar
Lufthansa
Feb 23
SEA2:00 pmSeattle/Tacoma Intl
14h 20m
1 stop
BLL1:20 pmBillund
Feb 27
BLL6:30 amBillund
15h 50m
2 stops
SEA1:20 pmSeattle/Tacoma Intl
$568
Find similar
Lufthansa
May 20
SEA10:00 amSeattle/Tacoma Intl
19h 10m
2 stops
BLL2:10 pmBillund
May 24
BLL5:55 amBillund
22h 04m
2 stops
SEA6:59 pmSeattle/Tacoma Intl
$638
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Billund 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, momondo users made 832,500 searches. Data last updated November 25, 2025.
Use the filters below to find and compare flights from Seattle to Billund that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 2/23

2:00 pm-1:20 pm

1 stop14h 20m

Billund

Fri 2/27

6:30 am-9:01 pm

3 stops23h 31m

$544

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 2/23

11:59 pm-1:40 pm

2 stops28h 41m

Billund

Fri 2/27

6:30 am-9:01 pm

3 stops23h 31m

$548

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 2/23

2:00 pm-1:20 pm

1 stop14h 20m

Billund

Fri 2/27

7:00 pm-12:10 pm

1 stop26h 10m

$554

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 2/23

2:00 pm-1:20 pm

1 stop14h 20m

Billund

Fri 2/27

6:30 am-1:20 pm

2 stops15h 50m

$568

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 12/25

12:35 pm-1:20 pm

2 stops39h 45m

Billund

Sat 1/10

2:15 pm-9:12 pm

2 stops39h 57m

$569

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 5/20

2:05 pm-5:55 pm

1 stop18h 50m

Billund

Sun 5/24

6:00 am-4:13 pm

2 stops19h 13m

$596

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 5/20

10:00 am-2:10 pm

2 stops19h 10m

Billund

Sun 5/24

5:55 am-6:59 pm

2 stops22h 04m

$638

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 5/20

2:10 pm-2:10 pm

1 stop15h 00m

Billund

Sun 5/24

5:55 am-6:59 pm

2 stops22h 04m

$643

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 12/25

5:02 am-1:20 pm

2 stops23h 18m

Billund

Sat 1/10

2:15 pm-10:43 pm

3 stops41h 28m

$657

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 5/20

2:10 pm-2:10 pm

1 stop15h 00m

Billund

Sun 5/24

6:45 pm-12:20 pm

1 stop26h 35m

$660

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Billund from

How to get the cheapest flight ticket from Seattle to Billund

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 month to fly to Billund?

In general, March is the cheapest month to fly from Seattle to Billund. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $590. If you aren’t able to travel to Billund during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $597.

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

The cheapest day to depart from Seattle to Billund is on a Friday when prices can be found for as low as $676. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Billund for around $1,018.

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

According to our data, the cheapest time of day to fly to Billund is in the morning. momondo users have found flights departing from Seattle to Billund in the morning for as low as $781. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,057.

When to book flights from Seattle to Billund

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

Cheap Seattle to Billund (SEA to BLL) flight deals and tips

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

Fastest flight time

14h 20m

Direct flights

None
The fastest flight from Seattle to Billund takes 14h 20m
There are no direct flights from Seattle to Billund. There are no popular flight routes from Seattle to Billund.
Search flight deals

  • How far is Seattle/Tacoma Intl to Billund by plane?

    The distance between Seattle/Tacoma Intl and Billund is about 4761.2 mi. By plane, this route typically takes 13h 40m.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Billund Airport refresh daily.

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

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Billund 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 Billund Airport.

  • What documentation or ID do you need to fly to Billund Airport?

    The travel and health documents required for your trip to Billund 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 Billund 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 Billund?

Best airlines flying from Seattle to Billund

Compare and see reviews for airlines that fly from Seattle to Billund with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $421Free CancellationRating
7.9
7,998 reviews
Search Delta flights
KLMPriceFrom $582Free CancellationRating
7.7
1,422 reviews
Search KLM flights
LufthansaPriceFrom $597Free CancellationRating
6.8
7,593 reviews
Search Lufthansa flights

Traveling to a place near Billund?

Book flights to Billund if you plan to visit one of these locations
Vejle
Ribe
Kolding
Middelfart
Horsens

Why use momondo?

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

Finding the right flight to Billund from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Billund quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Billund from Seattle with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Billund from Seattle.

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

Yes momondo offers price alerts on flights to Billund from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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