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$435+ Cheap flights from Seattle (SEA) to Lyon (LYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LYS
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Seattle to Lyon

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Lyon (LYS). 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 July 30, 2025.

Round-trip from

$649
(Trip.com)

One-way from

$435
(oojo)

Popular in

December

Cheapest in

January

Average price

$1,028
From Seattle/Tacoma Intl to Lyon-Saint Exupéry
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One-way flight from Seattle/Tacoma Intl to Lyon-Saint Exupéry
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Highest demand for flights based on searches. 13% potential increase in price ($159 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to Lyon

Cheapest flights from Seattle to Lyon
Explore the most affordable flight options available from Seattle to Lyon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:20 pmSEA - LYS
1 stop18h 15mScandinavian Airlines
Thu 10/98:15 pmLYS - SEA
1 stop26h 45mScandinavian Airlines
Deal found 7/28$656
This Mytrip deal was found by Cheapflights users on 7/28. 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.
Thu 9/113:45 pmSEA - LYS
3 stops31h 55mMultiple Airlines
Thu 9/1810:15 pmLYS - SEA
3 stops31h 25mMultiple Airlines
Deal found 7/28$663
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/811:30 amSEA - LYS
2 stops28h 25mTAP AIR PORTUGAL
Sun 10/196:30 pmLYS - SEA
2 stops48h 49mTAP AIR PORTUGAL
Deal found 7/28$668
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 10/137:15 amSEA - LYS
1 stop18h 20mUnited Airlines
Fri 10/242:00 pmLYS - SEA
2 stops41h 30mUnited Airlines
Deal found 7/29$693
This Air Canada deal was found by Cheapflights users on 7/28. 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.
Wed 8/132:55 pmSEA - LYS
2 stops16h 45mAir Canada
Wed 8/202:00 pmLYS - SEA
2 stops33h 16mAir Canada
Deal found 7/28$699
This Mytrip deal was found by Cheapflights users on 7/28. 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.
Wed 8/136:50 pmSEA - LYS
1 stop12h 50mLufthansa
Wed 8/202:00 pmLYS - SEA
2 stops33h 16mLufthansa
Deal found 7/28$706
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:20 pmSEA - LYS
1 stop29h 00mBritish Airways
Sun 10/199:40 pmLYS - SEA
1 stop22h 55mBritish Airways
Deal found 7/28$796
This Gurufare deal was found by Cheapflights users on 7/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:35 pmSEA - LYS
1 stop28h 55mAer Lingus
Sun 9/214:50 pmLYS - SEA
1 stop34h 00mAer Lingus
Deal found 7/29$954

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Lyon 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 July 30, 2025.
Use the filters below to find and compare flights from Seattle to Lyon that are best for you.

Fly from

Seattle

Fly to

Lyon

Route

Depart

Return

Price

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Wed 10/1

4:20 pm-7:35 pm

1 stop18h 15m

Lyon-Saint Exupéry

Thu 10/9

8:15 pm-2:00 pm

1 stop26h 45m

$656

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Thu 9/11

3:45 pm-8:40 am

3 stops31h 55m

Lyon-Saint Exupéry

Thu 9/18

10:15 pm-8:40 pm

3 stops31h 25m

$663

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Wed 10/8

11:30 am-12:55 am

2 stops28h 25m

Lyon-Saint Exupéry

Sun 10/19

6:30 pm-10:19 am

2 stops48h 49m

$668

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Mon 10/13

7:15 am-10:35 am

1 stop18h 20m

Lyon-Saint Exupéry

Fri 10/24

2:00 pm-10:30 pm

2 stops41h 30m

$693

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Wed 8/13

2:55 pm-4:40 pm

2 stops16h 45m

Lyon-Saint Exupéry

Wed 8/20

2:00 pm-2:16 pm

2 stops33h 16m

$699

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Wed 8/13

6:50 pm-4:40 pm

1 stop12h 50m

Lyon-Saint Exupéry

Wed 8/20

2:00 pm-2:16 pm

2 stops33h 16m

$706

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Wed 10/8

8:20 pm-10:20 am

1 stop29h 00m

Lyon-Saint Exupéry

Sun 10/19

9:40 pm-11:35 am

1 stop22h 55m

$796

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Fri 9/19

7:35 pm-9:30 am

1 stop28h 55m

Lyon-Saint Exupéry

Sun 9/21

4:50 pm-5:50 pm

1 stop34h 00m

$954

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Mon 9/29

11:30 am-5:30 pm

2 stops21h 00m

$435

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Mon 9/29

1:30 pm-6:40 pm

1 stop20h 10m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 11 results
1
2

Best time to book a flight from Seattle to Lyon

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

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Lyon (average of $703). Flying from Seattle to Lyon in June is currently the most expensive (average of $1,199). 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 SEA to LYS?

Find hourly flight availability from Seattle to Lyon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Lyon in the morning. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Lyon

Get insights into the airlines that provide service to Lyon. 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 Lyon. Reviews last updated July 30, 2025.
Peruse reviews from past customers who have flown with United Airlines, Scandinavian Airlines, and Air Canada from Seattle to Lyon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Scandinavian Airlines
7.3
Good
1,453 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,837 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
TAP AIR PORTUGAL
7.1
Good
1,930 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,269 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Seattle to Lyon. 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 Seattle to Lyon round-trip?

    Flying on Scandinavian Airlines is currently your cheapest option to Lyon, with prices starting at $656. Additional round-trip tickets that might be worth considering are offered by TAP AIR PORTUGAL and United Airlines, with the lowest prices starting at $668 and $693, respectively. Scandinavian Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $435 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include British Airways from $573 and United Airlines from $583 one-way.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to Lyon (average of $703). Flying from Seattle to Lyon in June is currently the most expensive (average of $1,199). 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 Lyon?

Book flights to Lyon if you plan to visit one of these locations
Annemasse
Les Houches
Huez

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Alternative routes for Seattle to Lyon

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Lyon flights

Top 4 airlines flying from Seattle to Lyon

Discover the top 4 airlines that operate flights from Seattle to Lyon. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$518Average$797FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$661Average$840FlexibilityNo cancel feeOn-time77%
DeltaCheapest$750Average$1,051FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$764Average$1,172FlexibilityNo cancel feeOn-time76%

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