SOF - PDX

$590 Find Cheap Flights from Sofia to Portland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Portland departing on 6/24. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Portland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Portland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Portland, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$956
Lufthansa
Wed 4/1Wed 9/2
SOF - PDX • 2 stops
Cheapest one-way
$590
Multiple Airlines
Wed 6/24
SOF - PDX • 3 stops
Top airlines
Cheapest • from $956 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sofia and Portland. You'll need at least 1 connection.
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sofia to Portland (SOF-PDX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sofia to Portland

Wed, Apr 1 - Wed, Sep 2
Lufthansa Logo
6:20 am - 6:34 pm
SOF
-
PDX
22h 14m
2 stops
Lufthansa Logo
8:29 am - 12:10 pm
PDX
-
SOF
17h 41m
2 stops
$956Lufthansa
Wed, Apr 1 - Wed, Sep 2
United Airlines Logo
6:20 am - 6:34 pm
SOF
-
PDX
22h 14m
2 stops
United Airlines Logo
12:50 pm - 10:50 pm
PDX
-
SOF
24h 00m
3 stops
$957United Airlines
Fri, Apr 3 - Fri, Apr 17
Lufthansa Logo
2:10 pm - 11:59 pm
SOF
-
PDX
19h 49m
2 stops
Lufthansa Logo
3:30 pm - 11:00 pm
PDX
-
SOF
21h 30m
2 stops
$960Lufthansa
Sun, Aug 23 - Sun, Aug 30
United Airlines Logo
6:20 am - 8:20 pm
SOF
-
PDX
24h 00m
2 stops
United Airlines Logo
8:35 am - 11:00 pm
PDX
-
SOF
28h 25m
3 stops
$975United Airlines
Fri, Apr 10 - Fri, Apr 17
Lufthansa Logo
6:20 am - 6:34 pm
SOF
-
PDX
22h 14m
2 stops
Lufthansa Logo
3:30 pm - 11:00 pm
PDX
-
SOF
21h 30m
2 stops
$989Lufthansa
Mon, Mar 30 - Sun, Apr 5
United Airlines Logo
8:00 am - 10:10 pm
SOF
-
PDX
24h 10m
2 stops
United Airlines Logo
7:15 am - 6:40 pm
PDX
-
SOF
25h 25m
2 stops
$994United Airlines
Sat, Apr 25 - Sat, May 9
KLM Logo
7:00 am - 6:52 pm
SOF
-
PDX
21h 52m
2 stops
KLM Logo
1:05 pm - 2:00 pm
PDX
-
SOF
14h 55m
1 stop
$999KLM
Sat, Apr 4 - Sat, Apr 18
KLM Logo
7:00 am - 11:10 am
SOF
-
PDX
14h 10m
1 stop
KLM Logo
10:42 am - 2:00 pm
PDX
-
SOF
17h 18m
2 stops
$1,006KLM
Fri, Apr 10 - Fri, Apr 17
KLM Logo
7:00 am - 11:10 am
SOF
-
PDX
14h 10m
1 stop
KLM Logo
1:05 pm - 2:00 pm
PDX
-
SOF
14h 55m
1 stop
$1,015KLM
Fri, Apr 10 - Fri, Apr 17
KLM Logo
7:00 am - 11:10 am
SOF
-
PDX
14h 10m
1 stop
KLM Logo
10:42 am - 2:00 pm
PDX
-
SOF
17h 18m
2 stops
$1,020KLM
Booking Insights

KAYAK's insights & trends for Sofia to Portland flights

Get data-powered insights and trends into flights from Sofia to Portland to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Sofia to Portland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Sofia to Portland were found on Lufthansa ($956) and United Airlines ($957).

Good to know

Cheapest flight$590
Flight from Sofia to Portland

When to book flights from Sofia to Portland

Are your dates flexible? Find out the best times to travel from Sofia to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sofia to Portland

  • What is the cheapest flight from Sofia to Portland?

    In the last 3 days, the lowest price for a flight from Sofia to Portland was $590 for a one-way ticket and $956 for a round-trip.

  • Do I need a passport to fly between Sofia and Portland?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Sofia and on arrival in Portland.

  • Which aircraft models fly most regularly from Sofia to Portland?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sofia to Portland?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Sofia and Portland, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sofia to Portland, KLM or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sofia to Portland are KLM and United Airlines. With an average price for the route of $1,072 and an overall rating of 7.8, KLM is the most popular choice. United Airlines is also a great choice for the route, with an average price of $885 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Sofia to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sofia to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sofia to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Sofia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sofia to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back to Sofia with another airline. Booking your flights between Sofia and PDX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sofia to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from Sofia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sofia to Portland

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sofia to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1471 reviews
8.4Crew
7.1Entertainment
7.3Food
7.8Boarding
7.6Comfort
Airline reviews

It was really nice journey i personally recommend klm flight

10.0 Excellentsmit, Mar 2026
AMD - BLR
Read more KLM reviews

It was really nice journey i personally recommend klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Terrible experience! delay 2 time and say i dont have ticket

Both my flight where delayed Had 25min to make it to my transfer flight

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

Short flight, crew and staff very efficient. Over all good flight experience.

Everything was on time and service on the flight was great!

The boarding in Buenos Aires (at the on ramp) was not great. They had to check every carry on. Not a United problem but was a Buenos Aires problem.

Staff and aircraft were good. However, weather in Houston lee to a ground stop. We were looking at circling behind three other planes until the stop was lifted. Pilot said we didn’t have enough fuel for that. So we flew on to New Orleans as the closest port with immigration and customs staff. Landed there and sat in the plane for two hours plus while staff was sorted. Turned away by ICE. Waited for pilots to be switched out, but after they were approved by ICE. Then had to wait to get a runway because so many planes were ahead of us. Finally took off and flew back to Houston. We all missed our connecting flights because it took too long. Hotel voucher from United was only a link to booking site. Total BS. Finally got a flight out the next day after a night without sleep because all the Houston hotels were booked by rodeo and spring break crowds.

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

I paid $7,000 to fly round trip to Porto. I thought it was for business class. But on the leg from Miami to Newark, and again from Newark to Miami, i was in coach. One time in the middle seat of coach. From Newark to Porto I was in business class as expected, and it was fine. I fly to Portugal once per month, often paying $5,000 for business class. Usually i fly American Airlines. I'd be happy to fly more with United Airlines. But my experience was disappointing because i was put in the coach for almost half the flights.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Everything you need to know for your flight from Sofia to Portland

Information on your arrival and departure airports