SOF - PDX

$1,420 Find Cheap Flights from Sofia to Portland

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Portland departing on 1/13. 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
$1,420
Lufthansa
Tue 1/13Thu 1/15
SOF - PDX • 2 stops
Cheapest one-way
Multiple Airlines
Thu 12/18
SOF - PDX • multi-stop
Top airlines
Lufthansa
Cheapest • from $1,420 (round-trip)
KLM
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Tue, Jan 13 - Thu, Jan 15
Lufthansa Logo
6:00 am - 6:56 pm
SOF
-
PDX
22h 56m2 stops
Lufthansa Logo
3:50 pm - 10:45 pm
PDX
-
SOF
20h 55m2 stops
$1,420Lufthansa
Tue, Jan 13 - Thu, Jan 15
Multiple Airlines Logo
2:15 pm - 6:30 pm
SOF
-
PDX
38h 15m2 stops
Multiple Airlines Logo
3:50 pm - 10:45 pm
PDX
-
SOF
20h 55m2 stops
$1,436Multiple Airlines
Tue, Jan 13 - Thu, Jan 15
Multiple Airlines Logo
6:35 pm - 11:25 am
SOF
-
PDX
26h 50m3 stops
Multiple Airlines Logo
3:15 pm - 10:45 pm
PDX
-
SOF
21h 30m3 stops
$2,382Multiple Airlines
Tue, Jan 13 - Thu, Jan 15
United Airlines Logo
6:00 am - 6:10 pm
SOF
-
PDX
22h 10m3 stops
United Airlines Logo
3:50 pm - 10:45 pm
PDX
-
SOF
20h 55m2 stops
$2,426United Airlines
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.

What’s the cheapest day of the week to fly from Sofia to Portland?

The average price of all round-trip flights from Sofia to Portland clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Portland on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Sofia to Portland. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

Good to know

Cheapest flight$1,420
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 $910 for a round-trip ticket.

  • 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 7.7, KLM is the most popular choice. United Airlines is also a great choice for the route, with an average price of $948 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.
7.7
KLMOverall score based on 1428 reviews
7.2Food
7.1Entertainment
7.6Comfort
8.4Crew
7.8Boarding
Airline reviews

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

8.0 ExcellentKevin, Nov 2025
AMS - BOD
Read more KLM reviews

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.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Klm start boarding while somw air issue in the plan

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Staff on board was excellent. Positive upbeat helpful- like it used to be.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

For an expensive flight to another country, United has a lot of nerve serving pretzels and no meals (unless, of course, you want to buy something to eat). Unacceptable.

The food is terrible. The same pasta or chicken with bad taste and presentation

United have really come back. Airport and boarding process is clear and good, app and information also very good

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

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

Information on your arrival and departure airports