HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Interlaken

$400+ Cheap flights from Portland, ME (PWM) to Interlaken, Switzerland

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — ZRH
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Interlaken with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Portland to Interlaken

Cheapest flights from Portland to Interlaken
Explore the most affordable flight options available from Portland to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This United Airlines deal was found by Cheapflights users on 10/17. 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.
Tue 12/27:47 pmPWM - ZRH
2 stops12h 58mUnited Airlines
Tue 12/910:20 amZRH - PWM
1 stop14h 22mUnited Airlines
Deal found 10/17$501

Cheap flight deals from Portland to Interlaken

Keep the following information in mind while searching for Portland to Interlaken flight deals. Data was last updated October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$501
(United Airlines)

One-way from

$400
(Booking.com)

Popular in

June

Cheapest in

March

Average price

$680
Provider with most accurate pricing for Boston Logan Intl-Zurich flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Zurich flights.
Search Deals
From Portland to Interlaken
Search Deals
One-way flight from Portland to Interlaken
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Interlaken 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 October 20, 2025.
Use the filters below to find and compare flights from Portland to Interlaken that are best for you.

Fly from

Portland

Fly to

Interlaken

Route

Depart

Return

Price

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Tue 12/2

7:47 pm-2:45 pm

2 stops12h 58m

Zurich

Tue 12/9

10:20 am-6:42 pm

1 stop14h 22m

$501

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Sat 1/10

2:35 pm-1:55 pm

2 stops17h 20m

Zurich

Sat 1/17

1:30 pm-11:49 pm

1 stop16h 19m

$557

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Sat 1/10

8:40 am-11:55 am

3 stops21h 15m

Zurich

Sat 1/17

1:20 pm-9:01 am

2 stops25h 41m

$607

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Fri 3/27

2:35 pm-10:30 am

1 stop14h 55m

Zurich

Tue 3/31

1:35 pm-11:49 pm

1 stop16h 14m

$653

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Sat 1/10

8:40 am-6:15 am

2 stops39h 35m

$400

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Fri 4/10

7:45 pm-6:10 am

2 stops52h 25m

$427

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Sat 1/10

2:35 pm-10:30 am

1 stop13h 55m

$469

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Fri 4/10

6:30 am-10:35 am

1 stop22h 05m

$569

PortlandZurich

PWM - ZRH

PWMZRH

Portland

Fri 4/10

2:20 pm-10:20 pm

3 stops26h 00m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Best time to book a flight from Portland to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken from Portland 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 Portland to Interlaken

What is the cheapest month to book a flight from Portland, Maine to Interlaken?

Currently, May is the cheapest month in which you can book a flight from Portland, Maine to Interlaken (average of $362). Flying from Portland, Maine to Interlaken in March is currently the most expensive (average of $493). 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.

Reviews of airlines servicing Interlaken

Get insights into the airlines that provide service to Interlaken. 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 Interlaken. Reviews last updated October 20, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Portland to Interlaken by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,991 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,991 reviews
United Airlines
7.4
Good
8,991 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,024 reviews
United Airlines
7.4
Good
8,991 reviews

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Portland to Interlaken. 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 from for flights from Portland to Interlaken?

    Most people fly from Portland (PWM) if they book a flight from Portland to Interlaken. On average, Portland has 0 outbound flights to Interlaken per day from 2 airlines. Portland is conveniently located just 2.9 mi from Portland’s city center.

  • How long is the flight from Portland, Maine to Interlaken?

    There are many flights that can get you from Portland, Maine to Interlaken in 12h 58m. Fly via United Airlines or Delta to get the fastest option. The distance between Portland, Maine and Interlaken is about 3653 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Portland to Interlaken that include hotel bookings?

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

  • How can I find direct flights from Portland to Interlaken?

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

  • Can I find deals for business class flights from Portland to Interlaken?

    Yes. Cheapflights offers flight deals from Portland to Interlaken 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 Portland, Maine to Interlaken?

    Currently, May is the cheapest month in which you can book a flight from Portland, Maine to Interlaken (average of $362). Flying from Portland, Maine to Interlaken in March is currently the most expensive (average of $493). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Portland to Interlaken

Discover the top 2 airlines that operate flights from Portland to Interlaken. 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$612Average$976FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$772Average$1,144FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.