$378 Cheap American Airlines flights Seattle (SEA) to Luxembourg (LUX)

View $378 flight on Sun, Nov 9, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$378 Cheap American Airlines flights Seattle (SEA) to Luxembourg (LUX)

Prices were available within the past 7 days and start at $378 for one-way flights and $439 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Nov 9 - Wed, Nov 19
SEA
Seattle
LUX
Luxembourg
$439 Roundtrip, found 3 hours ago
$439
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sun, Nov 9 from Seattle to Luxembourg, returning Wed, Nov 19, priced at $439 found 3 hours ago
American Airlines
Tue, Nov 18 - Thu, Dec 4
SEA
Seattle
LUX
Luxembourg
$439 Roundtrip, found 2 days ago
$439
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Nov 18 from Seattle to Luxembourg, returning Thu, Dec 4, priced at $439 found 2 days ago
American Airlines
Sun, Nov 9 - Wed, Nov 19
SEA
Seattle
LUX
Luxembourg
$443 Roundtrip, found 3 hours ago
$443
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sun, Nov 9 from Seattle to Luxembourg, returning Wed, Nov 19, priced at $443 found 3 hours ago
American Airlines
Sun, Nov 9 - Wed, Nov 19
SEA
Seattle
LUX
Luxembourg
$449 Roundtrip, found 3 hours ago
$449
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sun, Nov 9 from Seattle to Luxembourg, returning Wed, Nov 19, priced at $449 found 3 hours ago
American Airlines
Tue, Nov 18 - Thu, Dec 4
SEA
Seattle
LUX
Luxembourg
$449 Roundtrip, found 2 days ago
$449
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Nov 18 from Seattle to Luxembourg, returning Thu, Dec 4, priced at $449 found 2 days ago
American Airlines
Sun, Nov 9 - Wed, Nov 19
SEA
Seattle
LUX
Luxembourg
$453 Roundtrip, found 3 hours ago
$453
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sun, Nov 9 from Seattle to Luxembourg, returning Wed, Nov 19, priced at $453 found 3 hours ago
American Airlines
Tue, Sep 9 - Mon, Sep 22
SEA
Seattle
LUX
Luxembourg
$484 Roundtrip, found 2 days ago
$484
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep 9 from Seattle to Luxembourg, returning Mon, Sep 22, priced at $484 found 2 days ago
American Airlines
Tue, Sep 9 - Sat, Nov 1
SEA
Seattle
LUX
Luxembourg
$489 Roundtrip, found 3 days ago
$489
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Sep 9 from Seattle to Luxembourg, returning Sat, Nov 1, priced at $489 found 3 days ago
Flights from Seattle (SEA) to Luxembourg (LUX)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Findel
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United
Popular airline
Lufthansa
Distance
5059 mi

Explore a world of travel with Expedia

*Available to One Key members.