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Cheap flights from Seattle to Billund from $431

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Billund departing on 4/10. 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.
Air France Logo
2:15 pm - 11:00 pm
SEA
-
BLL
23h 45m
1 stop
Air France Logo
6:30 am - 1:05 pm
BLL
-
SEA
15h 35m
1 stop
$471Air France
Fri, Feb 20 - Sun, Mar 1
Air France Logo
2:15 pm - 11:00 pm
SEA
-
BLL
23h 45m
1 stop
Air France Logo
6:30 am - 1:05 pm
BLL
-
SEA
15h 35m
1 stop
$472Air France
Fri, Feb 20 - Sun, Mar 1
Delta Logo
7:10 am - 9:40 am
SEA
-
BLL
17h 30m
2 stops
Delta Logo
6:30 am - 1:05 pm
BLL
-
SEA
15h 35m
1 stop
$484Delta
Fri, Feb 20 - Sun, Mar 1
Delta Logo
7:10 am - 11:20 am
SEA
-
BLL
19h 10m
2 stops
Delta Logo
6:30 am - 1:05 pm
BLL
-
SEA
15h 35m
1 stop
$485Delta
Fri, Feb 20 - Sun, Mar 1
Delta Logo
3:05 pm - 1:30 pm
SEA
-
BLL
13h 25m
1 stop
Delta Logo
6:00 am - 11:40 am
BLL
-
SEA
14h 40m
1 stop
$488Delta
Thu, Feb 19 - Thu, Feb 26
Delta Logo
6:10 am - 9:40 am
SEA
-
BLL
18h 30m
2 stops
Delta Logo
6:00 am - 11:40 am
BLL
-
SEA
14h 40m
1 stop
$493Delta
Thu, Feb 19 - Tue, Feb 24
Delta Logo
7:10 am - 9:40 am
SEA
-
BLL
17h 30m
2 stops
Delta Logo
6:30 am - 4:48 pm
BLL
-
SEA
19h 18m
2 stops
$502Delta
Thu, Feb 19 - Tue, Feb 24
United Airlines Logo
5:20 pm - 1:30 pm
SEA
-
BLL
35h 10m
2 stops
United Airlines Logo
6:30 am - 10:43 pm
BLL
-
SEA
25h 13m
2 stops
$512United Airlines
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
5:20 pm - 1:30 pm
SEA
-
BLL
35h 10m
2 stops
United Airlines Logo
6:30 am - 1:49 pm
BLL
-
SEA
40h 19m
2 stops
$517United Airlines
Sat, Feb 28 - Tue, Mar 3
Delta Logo
6:10 am - 11:20 am
SEA
-
BLL
20h 10m
2 stops
Delta Logo
6:00 am - 2:44 pm
BLL
-
SEA
17h 44m
2 stops
$527Delta
Sat, Feb 28 - Thu, Mar 5

Air France flights from Seattle to Billund

Our best Air France deals on Seattle to Billund flight tickets
Air France
Feb 20
SEA2:15 pmSeattle/Tacoma Intl
23h 45m
1 stop
BLL11:00 pmBillund
Mar 1
BLL6:30 amBillund
15h 35m
1 stop
SEA1:05 pmSeattle/Tacoma Intl
$471
Air France
Feb 20
SEA2:15 pmSeattle/Tacoma Intl
23h 45m
1 stop
BLL11:00 pmBillund
Mar 1
BLL6:30 amBillund
15h 35m
1 stop
SEA1:05 pmSeattle/Tacoma Intl
$472
Air France
Jul 13
SEA6:35 pmSeattle/Tacoma Intl
18h 50m
1 stop
BLL10:25 pmBillund
Jul 31
BLL6:00 amBillund
14h 33m
1 stop
SEA11:33 amSeattle/Tacoma Intl
$628

Delta flights from Seattle to Billund

Our best Delta deals on Seattle to Billund flight tickets
Delta
Feb 20
SEA7:10 amSeattle/Tacoma Intl
17h 30m
2 stops
BLL9:40 amBillund
Mar 1
BLL6:30 amBillund
15h 35m
1 stop
SEA1:05 pmSeattle/Tacoma Intl
$484
Delta
Feb 20
SEA7:10 amSeattle/Tacoma Intl
19h 10m
2 stops
BLL11:20 amBillund
Mar 1
BLL6:30 amBillund
15h 35m
1 stop
SEA1:05 pmSeattle/Tacoma Intl
$485
Delta
Feb 19
SEA3:05 pmSeattle/Tacoma Intl
13h 25m
1 stop
BLL1:30 pmBillund
Feb 26
BLL6:00 amBillund
14h 40m
1 stop
SEA11:40 amSeattle/Tacoma Intl
$488

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 February 4, 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

Fri 2/20

2:15 pm-11:00 pm

1 stop23h 45m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$471

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

2:15 pm-11:00 pm

1 stop23h 45m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$472

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

7:10 am-9:40 am

2 stops17h 30m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$484

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

7:10 am-11:20 am

2 stops19h 10m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$485

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 2/19

3:05 pm-1:30 pm

1 stop13h 25m

Billund

Thu 2/26

6:00 am-11:40 am

1 stop14h 40m

$488

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 2/19

6:10 am-9:40 am

2 stops18h 30m

Billund

Tue 2/24

6:00 am-11:40 am

1 stop14h 40m

$493

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 2/19

7:10 am-9:40 am

2 stops17h 30m

Billund

Tue 2/24

6:30 am-4:48 pm

2 stops19h 18m

$502

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-10:43 pm

2 stops25h 13m

$512

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-1:49 pm

2 stops40h 19m

$517

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

6:10 am-11:20 am

2 stops20h 10m

Billund

Thu 3/5

6:00 am-2:44 pm

2 stops17h 44m

$527

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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

17h 40m

Direct flights

None
The fastest flight from Seattle to Billund takes 17h 40m
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 17h 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
KLMPriceFrom $524Free CancellationRating
7.7
1,448 reviews
Search KLM flights
DeltaPriceFrom $592Free CancellationRating
7.9
8,138 reviews
Search Delta flights
LufthansaPriceFrom $597Free CancellationRating
6.8
7,759 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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