SOF - PDX

$819 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 5/6. 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.
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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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Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from Sofia to Portland

KAYAK's recommended round-trip deals from the most popular airlines that fly from Sofia to Portland.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
6:00 am - 12:30 amSOF-PDX
28h 30m2 stops
United Airlines Logo
1:37 pm - 11:00 pmPDX-SOF
23h 23m2 stops
$872United Airlines
Find Deal
Tue, Jun 3 - Tue, Jul 8
 Logo
6:00 am - 6:45 pmSOF-PDX
22h 45m3 stops
 Logo
3:25 pm - 11:00 pmPDX-SOF
21h 35m2 stops
$1,009
Find Deal
Tue, Jun 3 - Tue, Jul 8
 Logo
1:00 pm - 11:59 pmSOF-PDX
44h 59m2 stops
 Logo
7:25 pm - 8:40 pmPDX-SOF
15h 15m1 stop
$1,266
Find Deal
Tue, Jun 3 - Tue, Jul 8
 Logo
7:00 am - 5:28 pmSOF-PDX
44h 28m3 stops
 Logo
6:39 pm - 1:15 pmPDX-SOF
32h 36m3 stops
$1,318
Find Deal
Tue, Jun 3 - Tue, Jul 8
 Logo
6:35 am - 1:35 pmSOF-PDX
17h 00m2 stops
 Logo
3:20 pm - 11:15 amPDX-SOF
33h 55m2 stops
$1,440
Find Deal
Tue, Jun 3 - Wed, Jun 4
 Logo
6:35 am - 1:35 pmSOF-PDX
17h 00m2 stops
 Logo
3:20 pm - 11:15 amPDX-SOF
33h 55m3 stops
$1,461
Find Deal
Tue, Jun 3 - Wed, Jun 4
 Logo
6:20 am - 1:35 pmSOF-PDX
17h 15m1 stop
 Logo
3:35 pm - 4:30 pmPDX-SOF
14h 55m1 stop
$1,635
Find Deal
Tue, Jun 3 - Tue, Jul 8
KLM Logo
7:00 am - 4:59 pmSOF-PDX
19h 59m2 stops
KLM Logo
1:15 pm - 2:00 pmPDX-SOF
14h 45m1 stop
$1,705KLM
Find Deal
Tue, Jun 3 - Wed, Jun 4
 Logo
6:00 am - 5:55 pmSOF-PDX
21h 55m3 stops
 Logo
6:15 am - 9:20 pmPDX-SOF
29h 05m3 stops
$1,822
Find Deal
Tue, Jun 3 - Wed, Jun 4
 Logo
6:20 am - 1:35 pmSOF-PDX
17h 15m1 stop
 Logo
7:25 pm - 1:30 pmPDX-SOF
32h 05m1 stop
$2,045
Find Deal
Tue, Jun 3 - Wed, Jun 4
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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$819
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 $819 for a one-way ticket and $872 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 $974 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.

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 1334 reviews
7.8Boarding
7.1Entertainment
8.4Crew
7.2Food
7.7Comfort
Airline reviews

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

8.0 ExcellentAnonymous, Apr 2025AMS - MAN
Read more KLM reviews

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

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

Good food. Excellent crew service. Clean aircraft. Narrow seats and isle.

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

A bit rush for transit. Food and entertainment are not available

So far so good but food and entertainment are not available for this flight

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

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

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