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$429+ Cheap flights from Billund (BLL) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — SEA
Jan 5 — Jan 121
Sun 1/5
Sun 1/12
1 adult, Economy
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The best prices from Billund to Seattle/Tacoma Intl are usually found in January or February, booked 87 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap flight deals from Billund to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Billund (BLL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 31, 2024.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$429
(Travelis)

Popular in

July

Cheapest in

January

Average price

$739
Provider with most accurate pricing for Billund-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Billund-Seattle/Tacoma Intl flights.
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From Billund to Seattle/Tacoma Intl
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High demand for flights, 15% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Billund to Seattle

Best flights from Billund to Seattle
Discover carefully curated flight deals from Billund to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2024.

This Travelis deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/164:05 pmBLL - SEA
1 stop33h 50mBritish Airways
Tue 1/211:35 pmSEA - BLL
2 stops16h 50mBritish Airways
Deal found 12/30$429
This Travelis deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/16:30 amBLL - SEA
1 stop14h 40mLufthansa
Thu 3/133:00 pmSEA - BLL
1 stop14h 25mLufthansa
Deal found 12/31$468
This United Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/136:30 amBLL - SEA
2 stops24h 00mUnited Airlines
Thu 2/202:00 pmSEA - BLL
1 stop14h 25mUnited Airlines
Deal found 12/30$485
This Air Canada deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1310:40 amBLL - SEA
3 stops20h 27mMultiple Airlines
Thu 2/203:05 pmSEA - BLL
2 stops37h 25mMultiple Airlines
Deal found 12/30$488
This Air Canada deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/136:30 amBLL - SEA
2 stops24h 37mAir Canada
Thu 2/2010:35 amSEA - BLL
2 stops17h 50mAir Canada
Deal found 12/30$491
This American Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/164:05 pmBLL - SEA
2 stops35h 55mAmerican Airlines
Tue 1/219:45 amSEA - BLL
2 stops20h 40mAmerican Airlines
Deal found 12/30$495

Find flights from Billund to Seattle within your budget

Customize your flight search to find flights from Billund to Seattle 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, Cheapflights users made 2,558,603 searches. Data last updated December 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 1/16

4:05 pm-4:55 pm

1 stop33h 50m

Seattle/Tacoma Intl

Tue 1/21

1:35 pm-3:25 pm

2 stops16h 50m

$429

BillundSeattle

BLL - SEA

BLLSEA

Billund

Sat 3/1

6:30 am-12:10 pm

1 stop14h 40m

Seattle/Tacoma Intl

Thu 3/13

3:00 pm-1:25 pm

1 stop14h 25m

$468

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 2/13

6:30 am-9:30 pm

2 stops24h 00m

Seattle/Tacoma Intl

Thu 2/20

10:52 am-1:25 pm

2 stops17h 33m

$485

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 2/13

10:40 am-10:07 pm

3 stops20h 27m

Seattle/Tacoma Intl

Thu 2/20

3:05 pm-1:30 pm

2 stops37h 25m

$488

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 2/13

6:30 am-10:07 pm

2 stops24h 37m

Seattle/Tacoma Intl

Thu 2/20

10:35 am-1:25 pm

2 stops17h 50m

$491

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 1/16

4:05 pm-7:00 pm

2 stops35h 55m

Seattle/Tacoma Intl

Tue 1/21

9:45 am-3:25 pm

2 stops20h 40m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

  • Most accurate provider: When it comes to deals on Billund-Seattle flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Billund-Seattle flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Billund-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billund-Seattle flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billund-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Billund to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Billund with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Billund to Seattle

Get recent, data-driven insights about flights from Billund to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Billund to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Billund to Seattle. Price data was last updated on December 27, 2024.

To ensure you get the cheapest price possible for a flight from Billund to Seattle, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Billund to Seattle?

Currently, January is the cheapest month in which you can book a flight from Billund to Seattle (average of $238). Flying from Billund to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BLL to SEA?

Find hourly flight availability from Billund to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 31, 2024.

When flying from Billund to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 8% versus a flight in the morning.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated December 31, 2024.
United Airlines
7.4
Good
8,978 reviews

Food

6.7

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

United Airlines
7.4
Good
8,978 reviews
United Airlines
7.4
Good
8,978 reviews

Food

6.7

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,978 reviews

Food

6.7

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Air Canada
7.0
Good
8,469 reviews
United Airlines
7.4
Good
8,978 reviews

Food

6.7

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Lufthansa
6.8
Okay
7,077 reviews
United Airlines
7.4
Good
8,978 reviews

Food

6.7

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

British Airways
6.6
Okay
6,807 reviews
United Airlines
7.4
Good
8,978 reviews

Food

6.7

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 10

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Related info for your journey

Find useful and relevant information for your journey from Billund to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Billund to Seattle round-trip?

    Cheapflights users have booked flights from Billund to Seattle round-trip from $429. Other airlines that can offer you cheap pricing are Lufthansa, from $468, and United Airlines, from $485. British Airways is priced at 29% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Billund to Seattle that include hotel bookings?

    Yes. In addition to deals on Billund to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billund to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billund to Seattle.

  • Can I find deals for business class flights from Billund to Seattle?

    Yes. Cheapflights offers flight deals from Billund to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billund to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Billund to Seattle (average of $238). Flying from Billund to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from Billund to Seattle

Discover the top airline that operate flights from Billund to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$430Average$952FlexibilityNo cancel feeOn-time75%
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