What is the cheapest airline to fly from Seattle to Bern round-trip?

SWISS, at $630, was found to be the cheapest airline from Seattle to Bern..

In terms of precipitation, rainfall in Bern ranges from 2.3 - 4.8 inches per month. June is typically the wettest month, when rainfall can reach 4.8 in. February is typically the driest time to visit Bern when rainfall is around 2.3 in.

If weather is an important factor for your trip to Bern, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What is the cheapest day to fly round-trip from Seattle to Bern?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 33% on the overall cost on flights from Seattle to Bern.

How far in advance should I book a flight from Seattle to Bern?

To save on the cost of your flight from Seattle to Bern, book at least 49 days before your planned departure. Booking around this time can save you about 19% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $595 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $743.

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

The best pricing can be found in the month of October. Prices to Bern from Seattle average $663. You can even find prices in October for less than $663, as users have found deals to Bern from as low as $387. The month of June appears to be one of the more expensive times to travel to Bern from Seattle. Flying in the targeted month can save you up to 35%.

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

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

How can I find direct flights from Seattle to Bern?

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

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

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

Find Cheap Flights from Seattle to Bern

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Cheap flight deals from Seattle to Bern

Popular in	June
Cheapest in	October
Average price	$646

Highest demand for flights based on searches. 15% potential increase in price ($120 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Best time to book a flight from Seattle to Bern

Have a flexible travel schedule? Discover the best time to fly to Bern 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 Bern

What is the cheapest time of day to fly from SEA to BRN?

Unlike in the morning, when flights are generally more expensive, you can save up to 19% on flights from Seattle to Bern by exploring options for tickets at noon.

Reviews of airlines servicing Bern

See what other customers who have flown with SWISS from Seattle to Bern have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

SWISS

7.5

Good

1,730 reviews

Reviews

1 / 20

2.0

Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.

SWISS

7.5

Good

1,730 reviews

SWISS

7.5

Good

1,730 reviews

Reviews

1 / 20

2.0

Mediocre

Joanne,Sep 2025

OPO - ZRH

Related info for your journey

What is the cheapest airline to fly from Seattle to Bern round-trip?
SWISS, at $630, was found to be the cheapest airline from Seattle to Bern..
Can I find deals for flights from Seattle to Bern that include hotel bookings?
Yes. In addition to deals on Seattle to Bern flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Bern?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Bern.
Can I find deals for business class flights from Seattle to Bern?
Yes. Cheapflights offers flight deals from Seattle to Bern by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Seattle to Bern

Airline	Cheapest	Average	Flexibility	On-time
SWISS	Cheapest$630	Average$1,046	FlexibilityNo cancel fee	On-time79%

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Find cheap flights from Seattle to Bern with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Bern

Popular in

Cheapest in

Average price

Best time to book a flight from Seattle to Bern

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

Cheapflights Insights

Everything you need to know about your flight from Seattle to Bern

What is the cheapest time of day to fly from SEA to BRN?

Reviews of airlines servicing Bern

Get insights into the airlines that provide service to Bern. 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 Bern. Reviews last updated September 15, 2025.

See what other customers who have flown with SWISS from Seattle to Bern have to say. You can also see how each airline compares 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 Seattle to Bern. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Seattle to Bern round-trip?

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

How can I find direct flights from Seattle to Bern?

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

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 Seattle to Bern

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

Complete your trip

Complete your trip to Bern by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Seattle to Bern by cabin class

Find flights from Seattle to Bern, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Seattle and Bern flights

Browse other Seattle and Bern flight options. Last updated on September 15, 2025.

Other flights from Seattle

Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2025.

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Top airline flying from Seattle to Bern

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Cheap flights from Seattle (SEA) to Bern (BRN)

Find cheap flights from Seattle to Bern with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Bern

Popular in

Cheapest in

Average price

Best time to book a flight from Seattle to Bern

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

Cheapflights Insights

Everything you need to know about your flight from Seattle to Bern

What is the cheapest time of day to fly from SEA to BRN?

Reviews of airlines servicing Bern

See what other customers who have flown with SWISS from Seattle to Bern have to say. You can also see how each airline compares 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 Seattle to Bern. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Seattle to Bern round-trip?

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

How can I find direct flights from Seattle to Bern?

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

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 Seattle to Bern

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

Top airline flying from Seattle to Bern

100% Free

Book with Flexibility

Travel Smart