SOF - PDX

$886 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 7/9. 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

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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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, Jul 9 - Sat, Jul 26
United Airlines Logo
6:00 am - 7:42 amSOF-PDX
35h 42m2 stops
United Airlines Logo
10:55 am - 11:00 pmPDX-SOF
26h 05m2 stops
$886United Airlines
Find Deal
Fri, Jul 18 - Thu, Jul 31
Lufthansa Logo
7:25 pm - 5:31 pmSOF-PDX
32h 06m2 stops
Lufthansa Logo
7:00 am - 11:00 pmPDX-SOF
30h 00m2 stops
$905Lufthansa
Find Deal
Fri, Jul 18 - Sun, Aug 3
United Airlines Logo
6:00 am - 7:42 amSOF-PDX
35h 42m2 stops
United Airlines Logo
8:50 am - 11:00 pmPDX-SOF
28h 10m2 stops
$915United Airlines
Find Deal
Fri, Jul 18 - Sun, Aug 3
Air Canada Logo
6:00 am - 11:01 pmSOF-PDX
27h 01m2 stops
Air Canada Logo
7:40 pm - 11:15 amPDX-SOF
29h 35m3 stops
$982Air Canada
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Thu, Jul 17 - Sun, Aug 3
 Logo
6:15 am - 11:01 pmSOF-PDX
26h 46m2 stops
 Logo
7:40 pm - 11:15 amPDX-SOF
29h 35m3 stops
$1,044
Find Deal
Wed, Jul 9 - Sat, Jul 26
British Airways Logo
9:30 pm - 7:01 pmSOF-PDX
31h 31m2 stops
British Airways Logo
7:25 pm - 8:20 pmPDX-SOF
14h 55m1 stop
$1,073British Airways
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Thu, Jul 17 - Sun, Aug 3
KLM Logo
7:00 am - 7:00 pmSOF-PDX
22h 00m2 stops
KLM Logo
12:55 pm - 2:00 pmPDX-SOF
15h 05m1 stop
$1,126KLM
Find Deal
Wed, Jul 9 - Sat, Jul 26
KLM Logo
7:00 am - 11:20 amSOF-PDX
14h 20m1 stop
KLM Logo
1:15 pm - 2:00 pmPDX-SOF
14h 45m1 stop
$1,150KLM
Find Deal
Fri, Jul 18 - Thu, Jul 31
 Logo
6:15 am - 6:45 pmSOF-PDX
22h 30m3 stops
 Logo
3:25 pm - 11:00 pmPDX-SOF
21h 35m2 stops
$1,209
Find Deal
Thu, Jul 17 - Sun, Aug 3
 Logo
3:20 pm - 2:15 pmSOF-PDX
32h 55m3 stops
 Logo
3:20 pm - 12:00 pmPDX-SOF
34h 40m3 stops
$1,255
Find Deal
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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$886
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 $886 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, oneworld, 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.

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 1363 reviews
7.2Food
7.8Boarding
7.7Comfort
8.4Crew
7.1Entertainment
Airline reviews

Klm start boarding while somw air issue in the plan

8.0 ExcellentA, Jun 2025AMS - YYZ
Read more KLM reviews

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

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

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

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

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

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.

Flight was on time. Boarding was smooth. Flight attendants were friendly and efficient. Entertainment system was broken for all passengers on the left side of the aisle. I would prefer if meals were not served on red eye flights. No one should need to dine at that time and it is disturbing for those passengers trying to sleep.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

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

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