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Cheap flights from Seattle to Billund from $686

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 9/15. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Billund

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 11:20 am
SEA
-
BLL
20h 20m
2 stops
Delta Logo
11:45 am - 4:35 pm
BLL
-
SEA
13h 50m
1 stop
$686Delta
Tue, Sep 15 - Mon, Oct 5
Delta Logo
5:45 pm - 9:35 am
SEA
-
BLL
30h 50m
1 stop
Delta Logo
6:00 am - 11:52 am
BLL
-
SEA
14h 52m
1 stop
$693Delta
Tue, Sep 15 - Fri, Oct 9
Delta Logo
10:40 pm - 11:20 am
SEA
-
BLL
27h 40m
2 stops
Delta Logo
6:00 am - 6:38 pm
BLL
-
SEA
21h 38m
2 stops
$696Delta
Tue, Sep 15 - Tue, Oct 6
Delta Logo
11:22 am - 1:30 pm
SEA
-
BLL
17h 08m
2 stops
Delta Logo
6:00 am - 8:14 pm
BLL
-
SEA
23h 14m
2 stops
$739Delta
Tue, Sep 15 - Fri, Oct 9
Scandinavian Airlines Logo
3:55 pm - 3:05 pm
SEA
-
BLL
14h 10m
1 stop
Scandinavian Airlines Logo
3:40 pm - 1:45 pm
BLL
-
SEA
31h 05m
1 stop
$767Scandinavian Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
10:41 am - 2:20 pm
SEA
-
BLL
18h 39m
2 stops
United Airlines Logo
6:00 am - 11:55 am
BLL
-
SEA
14h 55m
1 stop
$792United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
10:41 am - 2:20 pm
SEA
-
BLL
18h 39m
2 stops
United Airlines Logo
6:00 am - 11:55 am
BLL
-
SEA
14h 55m
1 stop
$793United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
7:00 am - 5:55 pm
SEA
-
BLL
25h 55m
2 stops
United Airlines Logo
6:00 am - 8:45 pm
BLL
-
SEA
23h 45m
2 stops
$802United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
2:10 pm - 6:00 pm
SEA
-
BLL
18h 50m
1 stop
United Airlines Logo
6:00 am - 8:45 pm
BLL
-
SEA
47h 45m
2 stops
$803United Airlines
Sun, Aug 9 - Sun, Aug 16
United Airlines Logo
1:55 pm - 6:00 pm
SEA
-
BLL
19h 05m
2 stops
United Airlines Logo
6:00 am - 9:35 am
BLL
-
SEA
36h 35m
2 stops
$807United Airlines
Sun, Aug 9 - Sun, Aug 16

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United Airlines flights from Seattle to Billund

Our best United Airlines deals on Seattle to Billund flight tickets
United Airlines
Sep 1
SEA10:41 amSeattle/Tacoma Intl
18h 39m
2 stops
BLL2:20 pmBillund
Sep 5
BLL6:00 amBillund
14h 55m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$792
United Airlines
Sep 1
SEA10:41 amSeattle/Tacoma Intl
18h 39m
2 stops
BLL2:20 pmBillund
Sep 5
BLL6:00 amBillund
14h 55m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$793
United Airlines
Sep 1
SEA7:00 amSeattle/Tacoma Intl
25h 55m
2 stops
BLL5:55 pmBillund
Sep 5
BLL6:00 amBillund
23h 45m
2 stops
SEA8:45 pmSeattle/Tacoma Intl
$802

Delta flights from Seattle to Billund

Our best Delta deals on Seattle to Billund flight tickets
Delta
Jul 7
SEA1:30 pmSeattle/Tacoma Intl
12h 50m
1 stop
BLL11:20 amBillund
Jul 14
BLL10:15 amBillund
19h 19m
2 stops
SEA8:34 pmSeattle/Tacoma Intl
$664
Delta
Jun 29
SEA1:30 pmSeattle/Tacoma Intl
17h 55m
1 stop
BLL4:25 pmBillund
Jul 9
BLL11:45 amBillund
13h 35m
1 stop
SEA4:20 pmSeattle/Tacoma Intl
$672
Delta
Jun 29
SEA9:05 amSeattle/Tacoma Intl
17h 15m
2 stops
BLL11:20 amBillund
Jul 9
BLL6:40 amBillund
13h 35m
1 stop
SEA11:15 amSeattle/Tacoma Intl
$677

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 June 28, 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

Cheapest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 9/15

6:00 am-11:20 am

2 stops20h 20m

Billund

Mon 10/5

11:45 am-4:35 pm

1 stop13h 50m

$686

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 9/15

5:45 pm-9:35 am

1 stop30h 50m

Billund

Fri 10/9

6:00 am-11:52 am

1 stop14h 52m

$693

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 9/15

10:40 pm-11:20 am

2 stops27h 40m

Billund

Tue 10/6

6:00 am-6:38 pm

2 stops21h 38m

$696

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 9/15

11:22 am-1:30 pm

2 stops17h 08m

Billund

Fri 10/9

6:00 am-8:14 pm

2 stops23h 14m

$739

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 9/1

3:55 pm-3:05 pm

1 stop14h 10m

Billund

Sat 9/5

3:40 pm-1:45 pm

1 stop31h 05m

$767
Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 9/1

10:41 am-2:20 pm

2 stops18h 39m

Billund

Sat 9/5

6:00 am-11:55 am

1 stop14h 55m

$792

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 9/1

10:41 am-2:20 pm

2 stops18h 39m

Billund

Sat 9/5

6:00 am-11:55 am

1 stop14h 55m

$793

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 9/1

7:00 am-5:55 pm

2 stops25h 55m

Billund

Sat 9/5

6:00 am-8:45 pm

2 stops23h 45m

$802

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 8/9

2:10 pm-6:00 pm

1 stop18h 50m

Billund

Sun 8/16

6:00 am-8:45 pm

2 stops47h 45m

$803

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 8/9

1:55 pm-6:00 pm

2 stops19h 05m

Billund

Sun 8/16

6:00 am-9:35 am

2 stops36h 35m

$807

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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 typical price of a round-trip flight between Seattle and Billund?

What is the cheapest month to fly to Billund?

In general, April 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 $0. If you aren’t able to travel to Billund during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $473.

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

12h 50m

Direct flights

None
The fastest flight from Seattle to Billund takes 12h 50m
There are no direct flights from Seattle to Billund. There are no popular flight routes from Seattle to Billund.
Search flight deals

Frequently asked questions about flying from Seattle to Billund

  • 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 12h 50m.

  • 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
7.8
8,455 reviews
Search Delta flights

Traveling to a place near Billund?

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