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Cheap flights from Seattle to Billund from $477

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 2/16. 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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Find the cheapest flights from Seattle to Billund

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:50 pm - 12:30 pm
SEA
-
BLL
32h 40m
1 stop
British Airways Logo
1:00 pm - 4:55 pm
BLL
-
SEA
12h 55m
1 stop
$477British Airways
Mon, Feb 16 - Thu, Feb 26
British Airways Logo
7:15 am - 12:05 pm
SEA
-
BLL
43h 50m
2 stops
British Airways Logo
1:00 pm - 4:55 pm
BLL
-
SEA
12h 55m
1 stop
$482British Airways
Wed, Feb 18 - Thu, Feb 26
British Airways Logo
6:50 pm - 12:30 pm
SEA
-
BLL
32h 40m
1 stop
British Airways Logo
8:45 pm - 12:24 am
BLL
-
SEA
36h 39m
2 stops
$484British Airways
Mon, Feb 16 - Mon, Feb 23
British Airways Logo
6:50 pm - 12:05 pm
SEA
-
BLL
32h 15m
1 stop
British Airways Logo
1:20 pm - 11:04 pm
BLL
-
SEA
42h 44m
2 stops
$488British Airways
Wed, Feb 18 - Wed, Feb 25
British Airways Logo
6:44 am - 12:05 pm
SEA
-
BLL
44h 21m
2 stops
British Airways Logo
1:20 pm - 9:57 pm
BLL
-
SEA
41h 37m
2 stops
$492British Airways
Wed, Feb 18 - Wed, Feb 25
United Airlines Logo
5:20 pm - 1:30 pm
SEA
-
BLL
35h 10m
2 stops
United Airlines Logo
6:30 am - 12:10 pm
BLL
-
SEA
14h 40m
1 stop
$504United Airlines
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
7:29 pm - 1:30 pm
SEA
-
BLL
33h 01m
2 stops
United Airlines Logo
6:30 am - 7:03 pm
BLL
-
SEA
21h 33m
2 stops
$508United Airlines
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
7:29 pm - 1:30 pm
SEA
-
BLL
33h 01m
2 stops
United Airlines Logo
6:30 am - 10:43 pm
BLL
-
SEA
25h 13m
2 stops
$509United Airlines
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
7:35 pm - 1:40 pm
SEA
-
BLL
34h 05m
3 stops
United Airlines Logo
10:35 am - 8:58 pm
BLL
-
SEA
18h 23m
2 stops
$512United Airlines
Mon, Mar 16 - Thu, Mar 19
Delta Logo
1:40 pm - 2:35 pm
SEA
-
BLL
15h 55m
1 stop
Delta Logo
6:30 am - 1:20 pm
BLL
-
SEA
15h 50m
1 stop
$516Delta
Tue, Feb 17 - Fri, Feb 27

Delta flights from Seattle to Billund

Our best Delta deals on Seattle to Billund flight tickets
Delta
Feb 17
SEA1:40 pmSeattle/Tacoma Intl
15h 55m
1 stop
BLL2:35 pmBillund
Feb 27
BLL6:30 amBillund
15h 50m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$516
Delta
Feb 17
SEA1:40 pmSeattle/Tacoma Intl
15h 55m
1 stop
BLL2:35 pmBillund
Feb 26
BLL6:30 amBillund
13h 55m
1 stop
SEA11:25 amSeattle/Tacoma Intl
$517
Delta
Feb 17
SEA1:40 pmSeattle/Tacoma Intl
15h 55m
1 stop
BLL2:35 pmBillund
Feb 23
BLL10:25 amBillund
34h 15m
1 stop
SEA11:40 amSeattle/Tacoma Intl
$523

British Airways flights from Seattle to Billund

Our best British Airways deals on Seattle to Billund flight tickets
British Airways
Feb 16
SEA6:50 pmSeattle/Tacoma Intl
32h 40m
1 stop
BLL12:30 pmBillund
Feb 23
BLL1:10 pmBillund
31h 20m
1 stop
SEA11:30 amSeattle/Tacoma Intl
$477
British Airways
Feb 16
SEA6:50 pmSeattle/Tacoma Intl
32h 40m
1 stop
BLL12:30 pmBillund
Feb 23
BLL8:45 pmBillund
23h 45m
1 stop
SEA11:30 amSeattle/Tacoma Intl
$478
British Airways
Feb 17
SEA6:44 amSeattle/Tacoma Intl
44h 26m
2 stops
BLL12:10 pmBillund
Feb 23
BLL8:45 pmBillund
23h 45m
1 stop
SEA11:30 amSeattle/Tacoma Intl
$482

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 January 21, 2026.
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 2/16

6:50 pm-12:30 pm

1 stop32h 40m

Billund

Thu 2/26

1:00 pm-4:55 pm

1 stop12h 55m

$477

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 2/18

7:15 am-12:05 pm

2 stops43h 50m

Billund

Thu 2/26

1:00 pm-4:55 pm

1 stop12h 55m

$482

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 2/16

6:50 pm-12:30 pm

1 stop32h 40m

Billund

Mon 2/23

8:45 pm-12:24 am

2 stops36h 39m

$484

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 2/18

6:50 pm-12:05 pm

1 stop32h 15m

Billund

Wed 2/25

1:20 pm-11:04 pm

2 stops42h 44m

$488

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 2/18

6:44 am-12:05 pm

2 stops44h 21m

Billund

Wed 2/25

1:20 pm-9:57 pm

2 stops41h 37m

$492

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

5:20 pm-1:30 pm

2 stops35h 10m

Billund

Tue 3/3

6:30 am-12:10 pm

1 stop14h 40m

$504

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

7:29 pm-1:30 pm

2 stops33h 01m

Billund

Tue 3/3

6:30 am-7:03 pm

2 stops21h 33m

$508

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

7:29 pm-1:30 pm

2 stops33h 01m

Billund

Tue 3/3

6:30 am-10:43 pm

2 stops25h 13m

$509

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 3/16

7:35 pm-1:40 pm

3 stops34h 05m

Billund

Thu 3/19

10:35 am-8:58 pm

2 stops18h 23m

$512

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 2/17

1:40 pm-2:35 pm

1 stop15h 55m

Billund

Fri 2/27

6:30 am-1:20 pm

1 stop15h 50m

$516

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, February 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 $561. If you aren’t able to travel to Billund during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $590.

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

15h 20m

Direct flights

None
The fastest flight from Seattle to Billund takes 15h 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 15h 20m.

  • 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
KLMPriceFrom $524Free CancellationRating
7.7
1,442 reviews
Search KLM flights
DeltaPriceFrom $592Free CancellationRating
7.9
8,087 reviews
Search Delta flights
LufthansaPriceFrom $597Free CancellationRating
6.8
7,736 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
Horsens
Middelfart

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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