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Cheap flights from Seattle to Billund from $562

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 10/29. 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

United Airlines Logo
6:20 am - 1:25 pmSEA-BLL
23h 05m3 stops
United Airlines Logo
10:20 am - 12:59 amBLL-SEA
23h 39m2 stops
$562United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
8:36 am - 1:25 pmSEA-BLL
20h 49m2 stops
United Airlines Logo
10:20 am - 12:10 pmBLL-SEA
34h 50m1 stop
$1,441United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
8:36 am - 9:45 amSEA-BLL
41h 09m3 stops
United Airlines Logo
6:35 am - 8:51 pmBLL-SEA
23h 16m3 stops
$1,524United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
WestJet Logo
2:05 pm - 10:25 pmSEA-BLL
23h 20m2 stops
WestJet Logo
6:45 am - 7:21 pmBLL-SEA
21h 36m2 stops
$3,048WestJet
Find Deal
Mon, Sep 29 - Thu, Oct 2
WestJet Logo
8:40 am - 10:25 pmSEA-BLL
28h 45m2 stops
WestJet Logo
6:45 am - 12:59 pmBLL-SEA
39h 14m2 stops
$17,751WestJet
Find Deal
Sun, Oct 5 - Fri, Oct 10

United Airlines flights from Seattle to Billund

Our best United Airlines deals on Seattle to Billund flight tickets
United Airlines
Oct 29
SEA6:20 amSeattle/Tacoma Intl
23h 05m
3 stops
BLL1:25 pmBillund
Nov 5
BLL10:20 amBillund
23h 39m
2 stops
SEA12:59 amSeattle/Tacoma Intl
$562
Find similar
United Airlines
Oct 29
SEA8:36 amSeattle/Tacoma Intl
20h 49m
2 stops
BLL1:25 pmBillund
Nov 5
BLL10:20 amBillund
34h 50m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$1,441
Find similar
United Airlines
Oct 29
SEA8:36 amSeattle/Tacoma Intl
41h 09m
3 stops
BLL9:45 amBillund
Nov 5
BLL6:35 amBillund
23h 16m
3 stops
SEA8:51 pmSeattle/Tacoma Intl
$1,524
Find similar

WestJet flights from Seattle to Billund

Our best WestJet deals on Seattle to Billund flight tickets
WestJet
Sep 29
SEA2:05 pmSeattle/Tacoma Intl
23h 20m
2 stops
BLL10:25 pmBillund
Oct 2
BLL6:45 amBillund
21h 36m
2 stops
SEA7:21 pmSeattle/Tacoma Intl
$3,048
Find similar
WestJet
Oct 5
SEA8:40 amSeattle/Tacoma Intl
28h 45m
2 stops
BLL10:25 pmBillund
Oct 10
BLL6:45 amBillund
39h 14m
2 stops
SEA12:59 pmSeattle/Tacoma Intl
$17,751
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 September 16, 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

Wed 10/29

6:20 am-1:25 pm

3 stops23h 05m

Billund

Wed 11/5

10:20 am-12:59 am

2 stops23h 39m

$562

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 10/29

8:36 am-1:25 pm

2 stops20h 49m

Billund

Wed 11/5

10:20 am-12:10 pm

1 stop34h 50m

$1,441

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 10/29

8:36 am-9:45 am

3 stops41h 09m

Billund

Wed 11/5

6:35 am-8:51 pm

3 stops23h 16m

$1,524

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 9/29

2:05 pm-10:25 pm

2 stops23h 20m

Billund

Thu 10/2

6:45 am-7:21 pm

2 stops21h 36m

$3,048

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 10/5

8:40 am-10:25 pm

2 stops28h 45m

Billund

Fri 10/10

6:45 am-12:59 pm

2 stops39h 14m

$17,751

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 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

Direct flights

None
There are no direct flights from Seattle to Billund. There are no popular flight routes from Seattle to Billund.
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  • 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 20h 49m.

  • 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
7,954 reviews
Search Delta flights
LufthansaPriceFrom $562Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
KLMPriceFrom $582Free CancellationRating
7.8
1,385 reviews
Search KLM flights

Traveling to a place near Billund?

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