What are the cheapest airlines to fly from State of Washington to Basel one-way?

One-way options have recently been found by users for as low as $282 on Lufthansa. Other airlines that offer cheap prices include Delta from $422 and American Airlines from $435 one-way.

What are the most popular routes from State of Washington to Basel?

While some choose either Portland - Basel EuroAirport Swiss or Pasco Tri Cities - Basel EuroAirport Swiss, Seattle/Tacoma Intl - Basel EuroAirport Swiss is the most popular route from State of Washington to Basel.

What are the most popular airlines that fly from State of Washington to Basel?

The most popular airlines flying from State of Washington to Basel are Air France, British Airways and Delta. Something to consider prior to booking your flight.

What is the cheapest month to fly from State of Washington to Basel?

The best pricing can be found in the month of January. Prices to Basel from State of Washington average $712. You can even find prices in January for less than $712, as users have found deals to Basel from as low as $566. The month of June appears to be one of the more expensive times to travel to Basel from State of Washington. Flying in the targeted month can save you up to 53%.

What airport do you fly into for flights to Basel from Washington?

Basel All airports (EAP) is the airport you will fly into if you book a flight from Washington to Basel. It is only a 0.2 mi journey from All airports (EAP) to Basel’s city center.

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

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

How can I find direct flights from Washington to Basel?

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

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

Yes. Cheapflights offers flight deals from Washington 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.

$282+ Flights from Washington to Basel - Compare & Save Big

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Cheap flight deals from Washington to Basel

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$600 (American Airlines)
One-way from	$282 (Vakatrip)
Popular in	June
Cheapest in	January
Average price	$663

Provider with most accurate pricing for Seattle/Tacoma Intl-Basel (EAP) flight deals.

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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Basel (EAP) flights.

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From Washington to Basel (EAP)

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One-way flight from Washington to Basel (EAP)

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Highest demand for flights based on searches. 22% potential increase in price ($205 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).

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Average for round-trip flights in May 2025

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Find flight deals from Washington to Basel

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

Sun 12/76:50 pmSEA - BSL

1 stop15h 10mAmerican Airlines

Wed 12/2411:15 amBSL - SEA

1 stop14h 40mAmerican Airlines

Deal found 4/30

$460

Sun 12/76:50 pmSEA - BSL

1 stop15h 10mBritish Airways

Wed 12/2411:15 amBSL - SEA

1 stop14h 40mBritish Airways

Deal found 4/30

$462

Mon 9/18:20 pmSEA - BSL

1 stop13h 00mMultiple Airlines

Mon 9/157:20 pmBSL - SEA

1 stop24h 50mMultiple Airlines

Deal found 4/30

$499

Mon 12/812:46 pmSEA - BSL

2 stops21h 44mUnited Airlines

Wed 12/249:35 amBSL - SEA

3 stops22h 51mUnited Airlines

Deal found 4/30

$524

Mon 5/128:10 amSEA - BSL

2 stops17h 40mLufthansa

Tue 5/276:05 amBSL - SEA

2 stops17h 08mLufthansa

Deal found 4/30

$650

Fri 5/97:20 amSEA - BSL

2 stops18h 35mAir Canada

Fri 5/308:25 amBSL - SEA

2 stops35h 20mAir Canada

Deal found 4/30

$705

Fri 8/111:45 amPSC - BSL

2 stops21h 05mDelta

Thu 8/286:15 amBSL - PSC

2 stops22h 31mDelta

Deal found 4/29

$805

Mon 5/126:35 pmSEA - BSL

1 stop29h 55mAir France

Tue 5/2710:15 amBSL - SEA

2 stops19h 08mAir France

Deal found 4/30

$807

Sat 7/121:30 pmSEA - BSL

1 stop16h 20mDelta

Tue 7/296:15 amBSL - SEA

2 stops18h 47mDelta

Deal found 4/30

$871

Wed 7/95:29 pmPDX - BSL

2 stops16h 31mMultiple Airlines

Wed 7/166:40 amBSL - PDX

2 stops20h 19mMultiple Airlines

Deal found 4/29

$990

Wed 7/97:25 pmPDX - BSL

1 stop18h 15mAmerican Airlines

Wed 7/166:40 amBSL - PDX

2 stops20h 19mAmerican Airlines

Deal found 4/29

$1,004

Wed 7/91:15 pmPDX - BSL

1 stop23h 25mKLM

Wed 7/166:15 amBSL - PDX

1 stop14h 05mKLM

Deal found 4/29

$1,057

Best flights from Washington to Basel
Discover carefully curated flight deals from Washington to Basel that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Mon 5/121:30 pmSEA - BSL

1 stop20h 30mAmerican Airlines

Tue 5/276:45 amBSL - SEA

1 stop13h 25mAmerican Airlines

Deal found 4/30

$600

Mon 5/128:10 amSEA - BSL

2 stops17h 40mLufthansa

Tue 5/276:05 amBSL - SEA

2 stops17h 08mLufthansa

Deal found 4/30

$650

Fri 5/911:20 amSEA - BSL

2 stops21h 20mBritish Airways

Fri 5/306:00 amBSL - SEA

2 stops20h 28mBritish Airways

Deal found 4/29

$783

Sat 7/1211:45 pmSEA - BSL

2 stops24h 25mUnited Airlines

Tue 7/2911:25 amBSL - SEA

2 stops32h 45mUnited Airlines

Deal found 4/30

$788

Fri 8/111:45 amPSC - BSL

2 stops21h 05mDelta

Thu 8/286:15 amBSL - PSC

2 stops22h 31mDelta

Deal found 4/29

$805

Mon 5/126:35 pmSEA - BSL

1 stop29h 55mAir France

Tue 5/2710:15 amBSL - SEA

2 stops19h 08mAir France

Deal found 4/30

$807

Wed 6/112:15 pmSEA - BSL

1 stop14h 25mMultiple Airlines

Wed 6/188:25 amBSL - SEA

2 stops33h 56mMultiple Airlines

Deal found 4/29

$869

Sun 6/227:15 pmSEA - BSL

2 stops30h 35mAir Canada

Wed 7/211:25 amBSL - SEA

2 stops32h 45mAir Canada

Deal found 4/29

$925

Mon 6/98:00 amSEA - BSL

2 stops40h 40mAustrian Airlines

Mon 6/1610:20 amBSL - SEA

2 stops43h 21mAustrian Airlines

Deal found 4/29

$1,054

Wed 7/91:15 pmPDX - BSL

1 stop23h 25mKLM

Wed 7/166:15 amBSL - PDX

1 stop14h 05mKLM

Deal found 4/29

$1,057

Mon 6/237:10 pmSEA - BSL

1 stop29h 30mTurkish Airlines

Fri 7/46:55 pmBSL - SEA

1 stop31h 20mTurkish Airlines

Deal found 4/29

$1,269

Sat 7/121:30 pmSEA - BSL

1 stop16h 20mDelta

Tue 7/296:15 amBSL - SEA

2 stops18h 47mDelta

Deal found 4/30

$871

Last-minute flights from Washington to Basel
Discover last-minute flight deals from Washington to Basel. Data last updated May 1, 2025 and is based on user searches.

Fri 5/91:30 pmSEA - BSL

2 stops19h 10mAmerican Airlines

Fri 5/306:00 amBSL - SEA

1 stop14h 35mAmerican Airlines

Deal found 4/30

$698

Fri 5/97:20 amSEA - BSL

2 stops18h 35mAir Canada

Fri 5/308:25 amBSL - SEA

2 stops35h 20mAir Canada

Deal found 4/30

$705

Fri 5/92:15 pmSEA - BSL

1 stop14h 30mLufthansa

Fri 5/309:45 amBSL - SEA

1 stop16h 14mLufthansa

Deal found 4/30

$709

Mon 5/121:30 pmSEA - BSL

1 stop20h 30mAmerican Airlines

Tue 5/276:45 amBSL - SEA

1 stop13h 25mAmerican Airlines

Deal found 4/30

$600

Mon 5/128:10 amSEA - BSL

2 stops17h 40mLufthansa

Tue 5/276:05 amBSL - SEA

2 stops17h 08mLufthansa

Deal found 4/30

$650

Mon 5/126:35 pmSEA - BSL

1 stop29h 55mAir France

Tue 5/2710:15 amBSL - SEA

2 stops19h 08mAir France

Deal found 4/30

$807

Sat 5/318:20 pmSEA - BSL

1 stop17h 30mBritish Airways

Fri 6/67:15 pmBSL - SEA

1 stop25h 20mBritish Airways

Deal found 4/29

$892

Sat 5/318:00 amSEA - BSL

2 stops26h 35mUnited Airlines

Fri 6/611:30 amBSL - SEA

1 stop33h 55mUnited Airlines

Deal found 4/29

$944

Sat 5/312:15 pmSEA - BSL

2 stops20h 20mMultiple Airlines

Fri 6/67:00 amBSL - SEA

3 stops26h 10mMultiple Airlines

Deal found 4/29

$1,190

One-way flights from Washington to Basel
Search for one-way flight options from Washington to Basel. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Fri 6/132:15 pmSEA - BSL

1 stop14h 30mLufthansa

Deal found 4/29

$282

Sun 5/111:30 pmSEA - BSL

1 stop14h 40mDelta

Deal found 4/29

$422

Mon 9/87:25 pmPDX - BSL

1 stop18h 25mAmerican Airlines

Deal found 4/30

$435

Sat 7/510:05 pmSEA - BSL

2 stops27h 50mUnited Airlines

Deal found 4/29

$460

Mon 9/81:15 pmPDX - BSL

2 stops20h 05mBritish Airways

Deal found 4/29

$488

Mon 9/81:15 pmPDX - BSL

1 stop19h 35mKLM

Deal found 4/29

$495

Fri 6/135:30 amSEA - BSL

2 stops23h 15mMultiple Airlines

Deal found 4/29

$535

Thu 9/118:01 amPDX - BSL

2 stops17h 54mMultiple Airlines

Deal found 4/29

$592

Wed 7/161:30 pmSEA - BSL

1 stop12h 50mBritish Airways

Deal found 4/29

$597

Thu 7/35:35 pmSEA - BSL

1 stop31h 00mKLM

Deal found 4/29

$1,292

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to Basel that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 9/1

8:20 pm-6:20 pm

1 stop13h 00m

Basel EuroAirport Swiss

Mon 9/15

7:20 pm-11:10 am

1 stop24h 50m

$499

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 9/1

8:20 pm-6:20 pm

1 stop13h 00m

Basel EuroAirport Swiss

Mon 9/15

6:35 am-8:04 pm

2 stops22h 29m

$568

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 5/12

8:10 am-10:50 am

2 stops17h 40m

Basel EuroAirport Swiss

Tue 5/27

6:05 am-2:13 pm

2 stops17h 08m

$650

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sat 7/12

11:45 pm-9:10 am

2 stops24h 25m

Basel EuroAirport Swiss

Tue 7/29

11:25 am-11:10 am

2 stops32h 45m

$788

PascoBasel

PSC - BSL

PSCBSL

Pasco Tri Cities

Fri 8/1

11:45 am-5:50 pm

2 stops21h 05m

Basel EuroAirport Swiss

Thu 8/28

6:15 am-7:46 pm

2 stops22h 31m

$805

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Mon 5/12

6:35 pm-9:30 am

1 stop29h 55m

Basel EuroAirport Swiss

Tue 5/27

10:15 am-8:23 pm

2 stops19h 08m

$807

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sat 7/12

8:20 pm-10:50 pm

1 stop17h 30m

Basel EuroAirport Swiss

Tue 7/29

6:45 am-11:10 am

1 stop13h 25m

$822

SeattleBasel

SEA - BSL

SEABSL

Seattle/Tacoma Intl

Sat 7/12

1:30 pm-2:50 pm

1 stop16h 20m

Basel EuroAirport Swiss

Tue 7/29

6:15 am-4:02 pm

2 stops18h 47m

$871

PortlandBasel

PDX - BSL

PDXBSL

Portland

Wed 7/9

5:29 pm-7:00 pm

2 stops16h 31m

Basel EuroAirport Swiss

Wed 7/16

6:40 am-5:59 pm

2 stops20h 19m

$990

PortlandBasel

PDX - BSL

PDXBSL

Portland

Wed 7/9

7:25 pm-10:40 pm

1 stop18h 15m

Basel EuroAirport Swiss

Wed 7/16

6:40 am-5:59 pm

2 stops20h 19m

$1,004

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 26 results

Best time to book a flight from Washington to Basel

Have a flexible travel schedule? Discover the best time to fly to Basel from Washington 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 Washington to Basel

What is the cheapest month to book a flight from State of Washington to Basel?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Basel (average of $545). Flying from State of Washington to Basel in June is currently the most expensive (average of $1,132). 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 WA to EAP?

When flying from State of Washington to Basel, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Basel by month

In terms of precipitation, rainfall in Basel ranges from 1.9 - 3.4 inches per month. June is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Basel when rainfall is around 1.9 in.

Temperature in Basel by month

If weather is an important factor for your trip to Basel, 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 January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Basel

Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Washington to Basel. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,934 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,334 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines

7.6

Good

781 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.4

Good

1,446 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly into for flights to Basel from Washington?
Basel All airports (EAP) is the airport you will fly into if you book a flight from Washington to Basel. It is only a 0.2 mi journey from All airports (EAP) to Basel’s city center.
What are the cheapest airlines to fly from State of Washington to Basel one-way?
One-way options have recently been found by users for as low as $282 on Lufthansa. Other airlines that offer cheap prices include Delta from $422 and American Airlines from $435 one-way.
What are the most popular routes from State of Washington to Basel?
While some choose either Portland - Basel EuroAirport Swiss or Pasco Tri Cities - Basel EuroAirport Swiss, Seattle/Tacoma Intl - Basel EuroAirport Swiss is the most popular route from State of Washington to Basel.
Can I find deals for flights from Washington to Basel that include hotel bookings?
Yes. In addition to deals on Washington to Basel flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Basel?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Basel.
Can I find deals for business class flights from Washington to Basel?
Yes. Cheapflights offers flight deals from Washington 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.
What is the cheapest month to book a flight from State of Washington to Basel?
Currently, January is the cheapest month in which you can book a flight from State of Washington to Basel (average of $545). Flying from State of Washington to Basel in June is currently the most expensive (average of $1,132). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Washington to Basel

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$443	Average$694	FlexibilityNo cancel fee	On-time70%
Air France	Cheapest$502	Average$769	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$513	Average$741	FlexibilityNo cancel fee	On-timeN/A

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$282+ Cheap flights from Washington to Basel (EAP)

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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Basel with Cheapflights

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Cheap flight deals from Washington to Basel

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington to Basel

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

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

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to Basel that are best for you.

Best time to book a flight from Washington to Basel

Have a flexible travel schedule? Discover the best time to fly to Basel from Washington with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington to Basel

What is the cheapest month to book a flight from State of Washington to Basel?

What is the cheapest time of day to fly from WA to EAP?

Find hourly flight availability from Washington to Basel. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

Rainfall in Basel by month

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

Temperature in Basel by month

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

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 May 1, 2025.

Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Washington to Basel. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington to Basel. 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 Basel from Washington?

What are the cheapest airlines to fly from State of Washington to Basel one-way?

What are the most popular routes from State of Washington to Basel?

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

How can I find direct flights from Washington to Basel?

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

What is the cheapest month to book a flight from State of Washington to Basel?

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 Washington to Basel

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Washington to Basel

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