HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$659+ Cheap flights from Luxembourg 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
LUX — SEA
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Luxembourg to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Luxembourg to Seattle

Keep the following information in mind while searching for Luxembourg to Seattle flight deals. Data was last updated May 1, 2025.

Round-trip from

$659
(Expedia)

Popular in

December

Cheapest in

February

Average price

$828
From Luxembourg to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Luxembourg to Seattle

Cheapest flights from Luxembourg to Seattle
Explore the most affordable flight options available from Luxembourg to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/159:05 pmLUX - SEA
1 stop23h 30mBritish Airways
Thu 5/298:20 pmSEA - LUX
1 stop15h 10mBritish Airways
Deal found 4/30$659
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/156:10 amLUX - SEA
1 stop18h 47mDelta
Thu 5/297:15 amSEA - LUX
2 stops21h 30mDelta
Deal found 4/30$662
This Air Canada deal was found by Cheapflights users on 4/30. 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.
Sun 6/228:25 amLUX - SEA
2 stops33h 56mAir Canada
Sun 7/62:55 pmSEA - LUX
2 stops16h 15mAir Canada
Deal found 4/30$752
This SWISS deal was found by Cheapflights users on 4/30. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/157:10 pmLUX - SEA
2 stops32h 42mSWISS
Thu 5/292:50 pmSEA - LUX
2 stops33h 50mSWISS
Deal found 4/30$765
This Lufthansa deal was found by Cheapflights users on 4/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/216:15 amLUX - SEA
1 stop15h 10mLufthansa
Sat 7/58:00 amSEA - LUX
2 stops17h 10mLufthansa
Deal found 4/30$768
This Flighttix deal was found by Cheapflights users on 4/30. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/157:30 amLUX - SEA
2 stops18h 14mAir France
Thu 5/291:30 pmSEA - LUX
1 stop12h 05mAir France
Deal found 4/30$807
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 6/218:25 amLUX - SEA
3 stops21h 46mUnited Airlines
Sat 7/56:38 amSEA - LUX
2 stops17h 37mUnited Airlines
Deal found 4/30$879
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/147:10 pmLUX - SEA
2 stops30h 49mMultiple Airlines
Sat 6/212:55 pmSEA - LUX
3 stops18h 10mMultiple Airlines
Deal found 4/30$1,321

Cheapflights Fare Finder

Customize your flight search to find flights from Luxembourg 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 May 1, 2025.
Use the filters below to find and compare flights from Luxembourg to Seattle that are best for you.

Fly from

Luxembourg

Fly to

Seattle

Route

Depart

Return

Price

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Thu 5/15

9:05 pm-11:35 am

1 stop23h 30m

Seattle/Tacoma Intl

Thu 5/29

8:20 pm-8:30 pm

1 stop15h 10m

$659

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Thu 5/15

6:10 am-3:57 pm

1 stop18h 47m

Seattle/Tacoma Intl

Thu 5/29

7:15 am-1:45 pm

2 stops21h 30m

$662

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sun 6/22

8:25 am-9:21 am

2 stops33h 56m

Seattle/Tacoma Intl

Sun 7/6

2:55 pm-4:10 pm

2 stops16h 15m

$752

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Thu 5/15

7:10 pm-6:52 pm

2 stops32h 42m

Seattle/Tacoma Intl

Thu 5/29

2:50 pm-9:40 am

2 stops33h 50m

$765

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 6/21

6:15 am-12:25 pm

1 stop15h 10m

Seattle/Tacoma Intl

Sat 7/5

8:00 am-10:10 am

2 stops17h 10m

$768

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Thu 5/15

7:30 am-4:44 pm

2 stops18h 14m

Seattle/Tacoma Intl

Thu 5/29

1:30 pm-10:35 am

1 stop12h 05m

$807

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 6/21

8:25 am-9:11 pm

3 stops21h 46m

Seattle/Tacoma Intl

Sat 7/5

6:38 am-9:15 am

2 stops17h 37m

$879

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sat 6/14

7:10 pm-4:59 pm

2 stops30h 49m

Seattle/Tacoma Intl

Sat 6/21

2:55 pm-6:05 pm

3 stops18h 10m

$1,321

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Tue 9/23

6:15 am-2:16 pm

2 stops17h 01m

$666

LuxembourgSeattle

LUX - SEA

LUXSEA

Luxembourg

Sun 9/21

9:20 pm-11:35 am

1 stop23h 15m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 13 results
1
2

Best time to book a flight from Luxembourg to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Luxembourg 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.

Cheapflights Insights

Everything you need to know about your flight from Luxembourg to Seattle

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 May 1, 2025.
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Luxembourg?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Luxembourg. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • What are the cheapest airlines to fly from Luxembourg to Seattle one-way?

    $666 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on American Airlines and KLM, with prices starting from $818 and $877, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Luxembourg 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 Luxembourg to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Luxembourg to Seattle (average of $238). Flying from Luxembourg to Seattle in July is currently the most expensive (average of $405). 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.

See more FAQs

Traveling to a place near Luxembourg?

Book flights to Luxembourg if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Lynnwood
Aberdeen
Shelton
Silverdale
Redmond
Issaquah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Luxembourg to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Seattle flights
Frankfurt to Seattle flights
Dublin to Seattle flights
Charles de Gaulle to Seattle flights
Gatwick to Seattle flights
Heathrow to Portland flights
Amsterdam to Seattle flights
Istanbul to Seattle flights
Munich to Seattle flights
Orly to Seattle flights
Copenhagen to Seattle flights
Berlin to Seattle flights
Madrid to Seattle flights
Frederic Chopin to Seattle flights
Bruxelles-National to Seattle flights
Charles de Gaulle to Portland flights
Oslo Gardermoen to Seattle flights
Leonardo da Vinci/Fiumicino to Seattle flights
Frankfurt-Hahn to Seattle flights
Amsterdam to Portland flights
Frankfurt to Portland flights
Manchester to Seattle flights
Vienna to Seattle flights
Otopeni Intl to Seattle flights
Zurich to Seattle flights
Duesseldorf Intl to Seattle flights
Geneva to Seattle flights
Gatwick to Portland flights
Barcelona-El Prat to Seattle flights
Edinburgh to Seattle flights
Helsinki to Seattle flights
Malpensa to Seattle flights
Lisbon to Seattle flights
Sofia to Seattle flights
Stansted to Seattle flights
Luton to Seattle flights
Sabiha Gokcen to Seattle flights
Hamburg to Seattle flights
Vicenza to Seattle flights
Krakow to Seattle flights
Glasgow Intl to Seattle flights
Lyon to Seattle flights
Birmingham to Seattle flights
Manchester to Portland flights
Belfast Intl to Seattle flights
Belfast City to Seattle flights
Marseille to Seattle flights

Top 4 airlines flying from Luxembourg to Seattle

Discover the top 4 airlines that operate flights from Luxembourg 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$591Average$691FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$698Average$1,058FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$711Average$761FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$711Average$1,150FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.