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Cheap flights from Seattle (SEA) to Basel (EAP) from $523

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 10/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — EAP
May 1 — May 81
From?
To?
Wed 5/1
Wed 5/8
1 adult, Economy
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Cheap flight deals from Seattle to Basel

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Basel (EAP). 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 April 26, 2024.

Popular in

January

Cheapest in

February

Average price

$1,093

Round-trip from

$558
High demand for flights, 58% potential price rise
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Best time to find cheap flights, 45% potential price drop
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Average for round-trip flights in April 2024
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From Seattle/Tacoma Intl to Basel (EAP)
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What is the cheapest day to fly round-trip from Seattle to Basel?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Seattle to Basel?

Our data shows that February tends to be the cheapest month to fly to Basel from Seattle. Users have commonly found prices around $1,252 for the month, but tickets can be as low as $683. Due to multiple factors, prepare for potentially higher prices in January.

When is the cheapest time to fly from Seattle to Basel (SEA - EAP)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 28% on flights from Seattle to Basel by exploring options for tickets in the evening.

Cheap British Airways flights from Seattle to Basel

Explore cheap flight options specifically provided by British Airways for the route between Seattle and Basel. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Consider these cheap British Airways flights we've found departing from Seattle to Basel. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 9/37:40 amSEA - BSL
2 stops18h 15mBritish Airways
Fri 9/206:40 amBSL - SEA
1 stop13h 55mBritish Airways
Deal found 4/25$609
Tue 9/37:40 amSEA - BSL
2 stops18h 15mBritish Airways
Fri 9/2011:45 amBSL - SEA
2 stops20h 00mBritish Airways
Deal found 4/26$619
Fri 8/236:36 amSEA - BSL
2 stops31h 19mBritish Airways
Wed 8/286:35 amBSL - SEA
1 stop14h 00mBritish Airways
Deal found 4/25$777
Fri 8/236:36 amSEA - BSL
2 stops31h 19mBritish Airways
Wed 8/286:35 amBSL - SEA
2 stops27h 20mBritish Airways
Deal found 4/25$791
Tue 5/71:30 pmSEA - BSL
1 stop19h 50mBritish Airways
Sun 5/197:05 amBSL - SEA
1 stop13h 25mBritish Airways
Deal found 4/25$845
Thu 7/181:30 pmSEA - BSL
1 stop24h 25mBritish Airways
Thu 7/256:35 amBSL - SEA
2 stops24h 23mBritish Airways
Deal found 4/25$958
Sat 8/2411:50 pmSEA - BSL
2 stops38h 05mBritish Airways
Sat 9/76:35 amBSL - SEA
1 stop14h 00mBritish Airways
Deal found 4/25$983
Thu 7/111:30 pmSEA - BSL
1 stop12h 25mBritish Airways
Mon 8/57:10 pmBSL - SEA
1 stop25h 25mBritish Airways
Deal found 4/25$1,123
Mon 7/87:40 pmSEA - BSL
1 stop13h 40mBritish Airways
Thu 8/86:35 amBSL - SEA
1 stop13h 55mBritish Airways
Deal found 4/25$1,370

Cheap American Airlines flights from Seattle to Basel

Explore cheap flight options specifically provided by American Airlines for the route between Seattle and Basel. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Take a gander at the lowest prices we've found on American Airlines flights from Seattle to Basel. Deals frequently update to provide users with more options.
Tue 5/71:22 pmSEA - BSL
2 stops24h 33mAmerican Airlines
Sun 5/197:05 amBSL - SEA
1 stop13h 25mAmerican Airlines
Deal found 4/25$849
Tue 5/71:22 pmSEA - BSL
2 stops24h 33mAmerican Airlines
Sun 5/197:05 amBSL - SEA
2 stops23h 45mAmerican Airlines
Deal found 4/25$859
Mon 7/156:00 amSEA - BSL
2 stops20h 00mAmerican Airlines
Thu 7/256:35 amBSL - SEA
2 stops24h 23mAmerican Airlines
Deal found 4/26$884
Mon 5/61:15 amSEA - BSL
2 stops32h 05mAmerican Airlines
Sun 5/197:05 amBSL - SEA
1 stop13h 25mAmerican Airlines
Deal found 4/24$1,163
Mon 5/61:15 amSEA - BSL
2 stops32h 05mAmerican Airlines
Sun 5/197:05 amBSL - SEA
2 stops25h 00mAmerican Airlines
Deal found 4/24$1,173
Thu 5/212:59 amSEA - BSL
2 stops25h 11mAmerican Airlines
Sat 5/116:35 amBSL - SEA
1 stop14h 00mAmerican Airlines
Deal found 4/25$1,614
Thu 5/212:59 amSEA - BSL
2 stops25h 11mAmerican Airlines
Sat 5/116:35 amBSL - SEA
2 stops24h 21mAmerican Airlines
Deal found 4/25$1,622

Cheap Seattle to Basel flights in April & May 2024

Find cheap flight options from Seattle to Basel specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Prices were last updated on April 26, 2024.
These are some of the most attractive deals on flights from Seattle to Basel in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sat 5/411:59 pmSEA - BSL
2 stops27h 56mUnited Airlines
Wed 5/159:40 amBSL - SEA
2 stops24h 18mUnited Airlines
Deal found 4/25$830
Sat 5/411:10 pmSEA - BSL
2 stops26h 30mMultiple Airlines
Wed 5/158:30 amBSL - SEA
1 stop12h 55mMultiple Airlines
Deal found 4/25$834
Sat 5/42:15 pmSEA - BSL
1 stop14h 25mLufthansa
Wed 5/158:30 amBSL - SEA
1 stop12h 55mLufthansa
Deal found 4/25$838
Tue 5/71:30 pmSEA - BSL
1 stop19h 50mBritish Airways
Sun 5/197:05 amBSL - SEA
1 stop13h 25mBritish Airways
Deal found 4/25$845
Tue 5/71:22 pmSEA - BSL
2 stops24h 33mAmerican Airlines
Sun 5/197:05 amBSL - SEA
1 stop13h 25mAmerican Airlines
Deal found 4/25$849
Tue 5/71:22 pmSEA - BSL
2 stops24h 33mAmerican Airlines
Sun 5/197:05 amBSL - SEA
2 stops23h 45mAmerican Airlines
Deal found 4/25$859
Fri 5/310:40 amSEA - BSL
2 stops14h 50mAir Canada
Sat 5/1111:05 amBSL - SEA
2 stops19h 26mAir Canada
Deal found 4/25$900
Fri 5/32:15 pmSEA - BSL
1 stop14h 25mLufthansa
Sat 5/111:30 pmBSL - SEA
2 stops17h 47mLufthansa
Deal found 4/25$908
Fri 5/35:40 pmSEA - BSL
1 stop15h 00mMultiple Airlines
Sat 5/116:40 amBSL - SEA
1 stop16h 30mMultiple Airlines
Deal found 4/25$921

Seattle to Basel 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Basel in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
These are some of the most attractive deals on flights from Seattle to Basel in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Wed 10/307:45 pmSEA - BSL
1 stop18h 15mBritish Airways
Tue 11/127:00 amBSL - SEA
1 stop18h 45mBritish Airways
Deal found 4/26$523
Wed 11/61:39 pmSEA - BSL
2 stops19h 41mAmerican Airlines
Wed 11/133:40 pmBSL - SEA
1 stop34h 05mAmerican Airlines
Deal found 4/25$527
Wed 10/3011:52 amSEA - BSL
2 stops22h 28mAmerican Airlines
Tue 11/127:00 amBSL - SEA
1 stop13h 25mAmerican Airlines
Deal found 4/25$528
Wed 11/69:55 amSEA - BSL
2 stops18h 40mMultiple Airlines
Wed 11/136:45 amBSL - SEA
2 stops23h 29mMultiple Airlines
Deal found 4/25$532
Wed 10/3011:52 amSEA - BSL
2 stops22h 28mAmerican Airlines
Tue 11/127:00 amBSL - SEA
2 stops22h 50mAmerican Airlines
Deal found 4/25$537
Tue 9/37:40 amSEA - BSL
2 stops18h 15mBritish Airways
Fri 9/206:40 amBSL - SEA
1 stop13h 55mBritish Airways
Deal found 4/26$609
Tue 9/37:40 amSEA - BSL
2 stops18h 15mBritish Airways
Fri 9/2011:45 amBSL - SEA
2 stops20h 00mBritish Airways
Deal found 4/26$619
Tue 9/36:15 pmSEA - BSL
1 stop14h 45mDelta
Fri 9/2010:15 amBSL - SEA
1 stop15h 35mDelta
Deal found 4/26$726
Sat 8/245:00 pmSEA - BSL
2 stops31h 05mUnited Airlines
Sat 9/711:05 amBSL - SEA
2 stops20h 48mUnited Airlines
Deal found 4/25$756

Seattle to Basel flights leaving soon

Find last-minute flight options from Seattle to Basel for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Check out these flights departing soon from Seattle to Basel. Users should examine the flight details to ensure there are no surprises.
Sat 5/411:59 pmSEA - BSL
2 stops27h 56mUnited Airlines
Wed 5/159:40 amBSL - SEA
2 stops24h 18mUnited Airlines
Deal found 4/25$830
Sat 5/411:10 pmSEA - BSL
2 stops26h 30mMultiple Airlines
Wed 5/158:30 amBSL - SEA
1 stop12h 55mMultiple Airlines
Deal found 4/25$834
Sat 5/42:15 pmSEA - BSL
1 stop14h 25mLufthansa
Wed 5/158:30 amBSL - SEA
1 stop12h 55mLufthansa
Deal found 4/25$838
Fri 5/310:40 amSEA - BSL
2 stops14h 50mAir Canada
Sat 5/1111:05 amBSL - SEA
2 stops19h 26mAir Canada
Deal found 4/25$900
Fri 5/32:15 pmSEA - BSL
1 stop14h 25mLufthansa
Sat 5/111:30 pmBSL - SEA
2 stops17h 47mLufthansa
Deal found 4/25$908
Fri 5/35:40 pmSEA - BSL
1 stop15h 00mMultiple Airlines
Sat 5/116:40 amBSL - SEA
1 stop16h 30mMultiple Airlines
Deal found 4/25$921
Fri 5/37:25 amSEA - BSL
3 stops25h 15mUnited Airlines
Sat 5/111:30 pmBSL - SEA
2 stops18h 21mUnited Airlines
Deal found 4/25$936
Sat 5/41:00 pmSEA - BSL
3 stops43h 40mMultiple Airlines
Wed 5/152:20 pmBSL - SEA
2 stops19h 38mMultiple Airlines
Deal found 4/25$982
Mon 5/61:15 amSEA - BSL
2 stops32h 05mAmerican Airlines
Sun 5/197:05 amBSL - SEA
1 stop13h 25mAmerican Airlines
Deal found 4/24$1,163

One-way flights to Basel from Seattle

Search for one-way flight options from Seattle to Basel. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Users traveling one-way from Seattle to Basel can select one of these great deals. Users in need of a round-trip flight from Seattle to Basel instead should update the search form at the top of page.
Sat 5/411:55 amSEA - BSL
2 stops20h 45mMultiple Airlines
Deal found 4/25$650
Sat 5/45:15 pmSEA - BSL
1 stop15h 25mMultiple Airlines
Deal found 4/25$687
Sat 5/45:15 pmSEA - BSL
1 stop19h 45mMultiple Airlines
Deal found 4/25$698
Sat 5/43:50 pmSEA - BSL
3 stops33h 25mMultiple Airlines
Deal found 4/25$712
Sat 5/43:50 pmSEA - BSL
3 stops33h 25mMultiple Airlines
Deal found 4/25$722
Sat 5/46:40 pmSEA - BSL
1 stop30h 00mTurkish Airlines
Deal found 4/25$744
Fri 5/312:59 amSEA - BSL
2 stops26h 01mAmerican Airlines
Deal found 4/25$2,313
Fri 5/312:59 amSEA - BSL
2 stops36h 56mAmerican Airlines
Deal found 4/25$2,357

Find flights from Seattle to Basel within your budget

Customize your flight search to find flights from Seattle to Basel 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 3,068,117 searches. Data last updated April 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$609 - $1,002

Route

Depart

Return

Price

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Tue 9/3

2 stops18h 15m

Basel EuroAirport Swiss

Fri 9/20

1 stop13h 55m

$609

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Tue 9/3

1 stop14h 45m

Basel EuroAirport Swiss

Fri 9/20

1 stop15h 35m

$726

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sat 8/24

2 stops31h 05m

Basel EuroAirport Swiss

Sat 9/7

2 stops20h 48m

$756

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Tue 5/7

2 stops24h 33m

Basel EuroAirport Swiss

Sun 5/19

1 stop13h 25m

$849

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Wed 7/10

2 stops18h 00m

Basel EuroAirport Swiss

Thu 8/8

2 stops17h 50m

$906

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sun 7/14

2 stops18h 00m

Basel EuroAirport Swiss

Thu 8/8

2 stops19h 10m

$909

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 7/15

2 stops18h 00m

Basel EuroAirport Swiss

Thu 7/25

1 stop12h 45m

$920

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Fri 8/23

1 stop19h 25m

Basel EuroAirport Swiss

Wed 8/28

1 stop24h 50m

$998

Seattle/Tacoma IntlBasel EuroAirport Swiss

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Thu 7/18

1 stop14h 50m

Basel EuroAirport Swiss

Thu 7/25

1 stop33h 25m

$1,002

Flights are sorted by cheapest first

Deals found on 4/25

When is the cheapest time to fly from Seattle to Basel?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Basel. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Basel flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Basel by month

Plan your trip from Seattle to Basel by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Basel is currently $1,110 while a round-trip flight costs $853. Price data was last updated on April 21, 2024.

Temperature and rainfall in Basel by month

Plan your trip to Basel by taking into account the average temperature and rainfall totals by month.

EAP

Temperature

33.8 - 66.2 °F

Reviews of airlines servicing Basel

Get insights into the airlines that provide service to Basel. 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 Basel. Reviews last updated April 26, 2024.
Read reviews from past customers who have flown British Airways, American Airlines and United Airlines from Seattle to Basel. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,966 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
10,966 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

KLM
7.9
Good
1,626 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

SWISS
7.8
Good
2,061 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Air France
7.6
Good
1,809 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Turkish Airlines
7.5
Good
3,695 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Boarding

8.2

Food

7.4

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Related info for your journey

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

  • Can I find flights from Seattle to Basel for under $700 on Cheapflights?

    Yes, there are multiple flights from Seattle to Basel for under $700. The cheapest flight booked recently is on British Airways for just $609, but on average you can expect to pay $847.

  • Are there last-minute flights available from Seattle to Basel for under $900?

    There are currently 13+ open flights from Seattle to Basel within the next 7 days for less than $900.

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

    Our cheapest airline available from Seattle to Basel is British Airways. Our recent data shows that you can find tickets from as low as $609 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $726 and $756 round-trip. British Airways is 51% cheaper than the average price of flights available within the next 90 days to this destination.

  • What does SEA to BSL mean?

    This is defined as Seattle/Tacoma Intl Airport (SEA) and Basel EuroAirport Swiss (BSL). Codes like Basel EuroAirport Swiss are often used to just call airports uniquely. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Mulhouse EuroAirport (MLH).

  • Can I find deals for flights from Seattle to Basel that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Basel flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Basel with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Basel flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Seattle to Basel that allow pets onboard?

    Many airlines flying from Seattle to Basel offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Basel?

    Yes, you can often find last-minute deals on Seattle to Basel flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Basel flight deals updated?

    The Seattle to Basel flight deals you see on this page were last updated on 4/26.

See more FAQs

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Alternative routes for Seattle to Basel
See prices for flight routes from nearby airports that may be better suited for you.

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Top 2 airlines flying from Seattle to Basel

Discover the top 2 airlines that operate flights from Seattle to Basel. 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 3,068,117 searches. Data last updated April 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$557Average$1,142FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest$719Average$1,271FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Seattle to Basel by cabin class

Find flights from Seattle to Basel, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Business Class
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Basel?

When you search for this flight from Seattle to Basel, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Basel?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Basel for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Seattle to Basel with no change fees?

Yes! Cheapflights helps users easily find flights from Seattle to Basel with no change fees.

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Of course! You can now track prices for flights from Seattle to Basel and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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