Which layover airport has the shortest travel time from Billund to Seattle?

Flights connecting via Munich (MUC) have the shortest average one-way travel time: 13h 26m.

Which layover airport offers the lowest fares from Billund to Seattle?

Flights via Munich (MUC) offer the lowest average round-trip price of $621.

Which layover airport has the shortest connection time from Billund to Seattle?

Munich (MUC) has the shortest average layover time for this route: 1h 41m.

Which airport is the most popular layover for flights between Billund and Seattle?

Frankfurt am Main (FRA) was the most common stop: 53% of momondo users choosing 1-stop flights on this route connected there.

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

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

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

As of December 2025, there is 1 operator available to choose from for flights from Billund Airport to Seattle/Tacoma Intl Airport.

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

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl 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 Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$468 Cheap Flights from Billund to Seattle in 2025/26

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Find the cheapest flights from Billund to Seattle

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1:00 pm - 4:55 pmBLL-SEA

12h 55m1 stop

6:12 am - 12:30 pmSEA-BLL

21h 18m2 stops

$499British Airways

Find Deal

jue., ene. 15 - mar., ene. 20

1:00 pm - 11:30 amBLL-SEA

31h 30m1 stop

1:25 pm - 12:30 pmSEA-BLL

14h 05m1 stop

$512British Airways

Find Deal

jue., ene. 15 - mar., ene. 20

1:00 pm - 10:20 pmBLL-SEA

42h 20m2 stops

8:04 am - 12:30 pmSEA-BLL

19h 26m2 stops

$520British Airways

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jue., ene. 15 - mar., ene. 20

2:10 pm - 11:50 amBLL-SEA

30h 40m1 stop

5:37 pm - 2:35 pmSEA-BLL

35h 58m2 stops

$582Delta

Find Deal

mié., ene. 21 - dom., ene. 25

6:00 am - 8:50 pmBLL-SEA

23h 50m2 stops

10:59 pm - 9:40 amSEA-BLL

25h 41m2 stops

$587Delta

Find Deal

mié., ene. 21 - dom., ene. 25

6:00 am - 11:50 amBLL-SEA

14h 50m1 stop

9:55 pm - 9:40 amSEA-BLL

26h 45m2 stops

$588Delta

Find Deal

mié., ene. 21 - dom., ene. 25

6:00 am - 11:50 amBLL-SEA

14h 50m1 stop

2:10 pm - 2:35 pmSEA-BLL

15h 25m1 stop

$593Delta

Find Deal

mié., ene. 21 - dom., ene. 25

10:25 am - 8:50 pmBLL-SEA

19h 25m2 stops

9:05 am - 1:30 pmSEA-BLL

19h 25m2 stops

$599Delta

Find Deal

mié., ene. 21 - dom., ene. 25

6:30 am - 7:16 pmBLL-SEA

21h 46m3 stops

8:00 pm - 1:25 pmSEA-BLL

32h 25m2 stops

$653Air Canada

Find Deal

jue., ene. 15 - mar., ene. 20

6:30 am - 7:16 pmBLL-SEA

21h 46m3 stops

5:50 am - 1:40 pmSEA-BLL

22h 50m3 stops

$737Air Canada

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jue., ene. 15 - mar., ene. 20

Delta flights from Billund to Seattle

Our best Delta deals on Billund to Seattle flight tickets

Delta

Jan 21

BLL2:10 pmBillund

30h 40m

1 stop

SEA11:50 amSeattle/Tacoma Intl

Jan 25

SEA5:37 pmSeattle/Tacoma Intl

35h 58m

2 stops

BLL2:35 pmBillund

$582

Find similar

Delta

Jan 21

BLL6:00 amBillund

23h 50m

2 stops

SEA8:50 pmSeattle/Tacoma Intl

Jan 25

SEA10:59 pmSeattle/Tacoma Intl

25h 41m

2 stops

BLL9:40 amBillund

$587

Find similar

Delta

Jan 21

BLL6:00 amBillund

14h 50m

1 stop

SEA11:50 amSeattle/Tacoma Intl

Jan 25

SEA9:55 pmSeattle/Tacoma Intl

26h 45m

2 stops

BLL9:40 amBillund

$588

Find similar

Air Canada flights from Billund to Seattle

Our best Air Canada deals on Billund to Seattle flight tickets

Air Canada

Jan 15

BLL6:30 amBillund

24h 36m

3 stops

SEA10:06 pmSeattle/Tacoma Intl

Jan 20

SEA8:00 pmSeattle/Tacoma Intl

32h 25m

2 stops

BLL1:25 pmBillund

$653

Find similar

Air Canada

Jan 15

BLL6:30 amBillund

21h 46m

3 stops

SEA7:16 pmSeattle/Tacoma Intl

Jan 20

SEA5:50 amSeattle/Tacoma Intl

22h 50m

3 stops

BLL1:40 pmBillund

$737

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BillundSeattle

BLL - SEA

BLLSEA

Billund

jue. 1/15

1:00 pm-4:55 pm

1 stop12h 55m

Seattle/Tacoma Intl

mar. 1/20

6:12 am-12:30 pm

2 stops21h 18m

$499

BillundSeattle

BLL - SEA

BLLSEA

Billund

jue. 1/15

1:00 pm-11:30 am

1 stop31h 30m

Seattle/Tacoma Intl

mar. 1/20

1:25 pm-12:30 pm

1 stop14h 05m

$512

BillundSeattle

BLL - SEA

BLLSEA

Billund

jue. 1/15

1:00 pm-10:20 pm

2 stops42h 20m

Seattle/Tacoma Intl

mar. 1/20

8:04 am-12:30 pm

2 stops19h 26m

$520

BillundSeattle

BLL - SEA

BLLSEA

Billund

mié. 1/21

2:10 pm-11:50 am

1 stop30h 40m

Seattle/Tacoma Intl

dom. 1/25

5:37 pm-2:35 pm

2 stops35h 58m

$582

BillundSeattle

BLL - SEA

BLLSEA

Billund

mié. 1/21

6:00 am-8:50 pm

2 stops23h 50m

Seattle/Tacoma Intl

dom. 1/25

10:59 pm-9:40 am

2 stops25h 41m

$587

BillundSeattle

BLL - SEA

BLLSEA

Billund

mié. 1/21

6:00 am-11:50 am

1 stop14h 50m

Seattle/Tacoma Intl

dom. 1/25

9:55 pm-9:40 am

2 stops26h 45m

$588

BillundSeattle

BLL - SEA

BLLSEA

Billund

mié. 1/21

6:00 am-11:50 am

1 stop14h 50m

Seattle/Tacoma Intl

dom. 1/25

2:10 pm-2:35 pm

1 stop15h 25m

$593

BillundSeattle

BLL - SEA

BLLSEA

Billund

mié. 1/21

10:25 am-8:50 pm

2 stops19h 25m

Seattle/Tacoma Intl

dom. 1/25

9:05 am-1:30 pm

2 stops19h 25m

$599

BillundSeattle

BLL - SEA

BLLSEA

Billund

jue. 1/15

6:30 am-7:16 pm

3 stops21h 46m

Seattle/Tacoma Intl

mar. 1/20

8:00 pm-1:25 pm

2 stops32h 25m

$653

BillundSeattle

BLL - SEA

BLLSEA

Billund

jue. 1/15

6:30 am-7:16 pm

3 stops21h 46m

Seattle/Tacoma Intl

mar. 1/20

5:50 am-1:40 pm

3 stops22h 50m

$737

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Billund to Seattle

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

Prices

Layovers

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Billund to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $516. If you don’t want to visit Seattle in January, then you should wait until December to fly from Billund, when ticket prices are also cheap, with an average price of $555.

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

On average, the least expensive day to fly to Seattle from Billund is on a Monday. momondo users have found tickets for Monday departures for as low as $602. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Billund because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $879.

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

Flying to Seattle from Billund at noon is the least expensive time of day to depart. momondo users have found prices as low as $790 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $795. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Billund when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $657 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Billund for as low as $590 on momondo.

When to book flights from Billund to Seattle

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

Estimated round-trip price

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

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

Fastest flight time	30h 40m
Direct flights	None

The fastest flight from Billund to Seattle takes 30h 40m

There are no direct flights from Billund to Seattle. There are no popular flight routes from Billund to Seattle.

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How far is Billund to Seattle/Tacoma Intl by plane?
The straight-line distance from Billund to Seattle/Tacoma Intl is 4761.2 mi. By plane, this route typically takes 12h 55m.
When did momondo last update prices for flights from Billund Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Billund Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Billund Airport to Seattle/Tacoma Intl Airport?
As of December 2025, there is 1 operator available to choose from for flights from Billund Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Billund Airport to Seattle/Tacoma Intl 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 Billund Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl 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 Seattle/Tacoma Intl 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 Billund to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Billund to Seattle is Lufthansa (100% of total bookings).

Best airlines flying from Billund to Seattle

Compare and see reviews for airlines that fly from Billund to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $595	Free Cancellation	Rating 6.8 7,602 reviews		Search Lufthansa flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Tukwila

Cle Elum

Lakewood

Federal Way

Fife

Centralia

Kirkland

Westport

Shoreline

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Billund to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Billund to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Seattle from Billund. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Billund to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.