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$343+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LYS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Lyon-Saint Exupéry are usually found in March or February, booked 75 days in advance, depart on a Tuesday or Monday and return on a Tuesday

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 June 12, 2025.

Round-trip from

$623
(Kiwi.com)

One-way from

$343
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,471
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. 14% potential increase in price ($174 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/47:20 amSEA - LYS
1 stop18h 15mMultiple Airlines
Mon 8/186:55 pmLYS - SEA
1 stop26h 00mMultiple Airlines
Deal found 6/10$623
This United Airlines deal was found by Cheapflights users on 6/10. 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 8/1112:20 amSEA - LYS
2 stops25h 15mUnited Airlines
Thu 8/282:35 pmLYS - SEA
2 stops39h 06mUnited Airlines
Deal found 6/10$716
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2012:05 pmSEA - LYS
2 stops37h 30mAir Canada
Wed 9/32:00 pmLYS - SEA
2 stops32h 06mAir Canada
Deal found 6/11$720
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 8/201:30 pmSEA - LYS
1 stop18h 15mAmerican Airlines
Wed 9/310:10 amLYS - SEA
2 stops18h 59mAmerican Airlines
Deal found 6/11$733
This Air France deal was found by Cheapflights users on 6/10. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/121:30 pmSEA - LYS
1 stop11h 55mAir France
Thu 8/2811:15 amLYS - SEA
1 stop15h 20mAir France
Deal found 6/10$751
This British Airways deal was found by Cheapflights users on 6/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/201:30 pmSEA - LYS
1 stop18h 15mBritish Airways
Wed 9/31:35 pmLYS - SEA
1 stop31h 00mBritish Airways
Deal found 6/11$762
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Fri 8/17:15 pmSEA - LYS
2 stops30h 20mLufthansa
Fri 8/151:00 pmLYS - SEA
1 stop12h 59mLufthansa
Deal found 6/12$917
This KLM deal was found by Cheapflights users on 6/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/15:40 pmSEA - LYS
1 stop19h 40mKLM
Fri 8/1512:00 pmLYS - SEA
1 stop12h 55mKLM
Deal found 6/11$921
This oojo deal was found by Cheapflights users on 6/11. 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.
Sun 7/137:10 pmSEA - LYS
1 stop38h 10mTurkish Airlines
Wed 7/237:15 pmLYS - SEA
1 stop24h 20mTurkish Airlines
Deal found 6/11$940
This Gurufare deal was found by Cheapflights users on 6/12. 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 8/17:35 pmSEA - LYS
1 stop28h 55mAer Lingus
Tue 9/304:50 pmLYS - SEA
1 stop34h 00mAer Lingus
Deal found 6/12$941

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 June 12, 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

Mon 8/4

7:20 am-10:35 am

1 stop18h 15m

Lyon-Saint Exupéry

Mon 8/18

6:55 pm-11:55 am

1 stop26h 00m

$623

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Mon 8/11

12:20 am-10:35 am

2 stops25h 15m

Lyon-Saint Exupéry

Thu 8/28

6:50 am-11:55 am

1 stop14h 05m

$716

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Wed 8/20

12:05 pm-10:35 am

2 stops37h 30m

Lyon-Saint Exupéry

Wed 9/3

2:00 pm-1:06 pm

2 stops32h 06m

$720

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Wed 8/20

1:30 pm-4:45 pm

1 stop18h 15m

Lyon-Saint Exupéry

Wed 9/3

10:10 am-8:09 pm

2 stops18h 59m

$733

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Tue 8/12

1:30 pm-10:25 am

1 stop11h 55m

Lyon-Saint Exupéry

Thu 8/28

11:15 am-5:35 pm

1 stop15h 20m

$751

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Wed 8/20

1:30 pm-4:45 pm

1 stop18h 15m

Lyon-Saint Exupéry

Wed 9/3

1:35 pm-11:35 am

1 stop31h 00m

$762

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Fri 8/1

7:15 pm-10:35 am

2 stops30h 20m

Lyon-Saint Exupéry

Fri 8/15

1:00 pm-4:59 pm

1 stop12h 59m

$917

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Fri 8/1

5:40 pm-10:20 pm

1 stop19h 40m

Lyon-Saint Exupéry

Fri 8/15

12:00 pm-3:55 pm

1 stop12h 55m

$921

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Sun 7/13

7:10 pm-6:20 pm

1 stop38h 10m

Lyon-Saint Exupéry

Wed 7/23

7:15 pm-10:35 am

1 stop24h 20m

$940

SeattleLyon

SEA - LYS

SEALYS

Seattle/Tacoma Intl

Fri 8/1

7:35 pm-9:30 am

1 stop28h 55m

Lyon-Saint Exupéry

Tue 9/30

4:50 pm-5:50 pm

1 stop34h 00m

$941

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 15 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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Lyon. Price data was last updated on June 9, 2025.

The best time to book flights from Seattle to Lyon is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 June 12, 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.

Rainfall in Lyon by month

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

In terms of precipitation, rainfall in Lyon ranges from 1.6 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. January is typically the driest time to visit Lyon when rainfall is around 1.6 in.

Temperature in Lyon by month

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

If weather is an important factor for your trip to Lyon, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

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 June 12, 2025.
KLM
7.8
Good
1,358 reviews

Food

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews

Food

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Air France
7.5
Good
1,463 reviews
KLM
7.8
Good
1,358 reviews

Food

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
United Airlines
7.4
Good
8,790 reviews
KLM
7.8
Good
1,358 reviews

Food

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Turkish Airlines
7.3
Good
3,848 reviews
KLM
7.8
Good
1,358 reviews

Food

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,358 reviews

Food

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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 United Airlines is currently your cheapest option to Lyon, with prices starting at $716. Additional round-trip tickets that might be worth considering are offered by Air Canada and American Airlines, with the lowest prices starting at $720 and $733, respectively. United Airlines is priced at 32% 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 $428 on WestJet. Other airlines that offer cheap prices include British Airways from $573 and Air Canada from $578 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 Seattle?

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Alternative routes for Seattle to Lyon

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$518Average$797FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$662Average$952FlexibilityNo cancel feeOn-time77%
DeltaCheapest$750Average$1,051FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$764Average$1,177FlexibilityNo cancel feeOn-time76%

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