Cheap flights from Portland to Sofia from $599
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Sofia departing on 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Portland to Sofia
Cheap round-trip flights
Air Canada flights from Portland to Sofia
Our best Air Canada deals on Portland to Sofia flight tickets
United Airlines flights from Portland to Sofia
Our best United Airlines deals on Portland to Sofia flight tickets
See travel insights to Sofia from
How to get the cheapest flight ticket from Portland to Sofia
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Portland and Sofia?
What is the cheapest month to fly to Sofia?
The cheapest month to fly to Sofia from Portland is in October. Flight prices, which tend to average around $739, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Sofia from Portland during November instead. Flights to Sofia in November, while not as cheap as those in October, still average around $761.
What is the cheapest day to depart on your flight to Sofia?
According to our data, Tuesday is the cheapest day to fly to Sofia from Portland. The lowest ticket price found for a Tuesday departure recently was $956. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Portland to Sofia on a Saturday will generally be more expensive and average around $1,199. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
When to book flights from Portland to Sofia
Cheap Portland to Sofia (PDX to SOF) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to Sofia
How far is Portland to Sofia by plane?
A flight from Portland to Sofia will travel around 5988.5 mi. 14h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from Portland Airport to Sofia Airport?
Prices for flights from Portland Airport to Sofia Airport are updated daily.
How many operators does momondo search for flights from Portland Airport to Sofia Airport?
As of June 2025, there are 4 operators available to choose from for flights from Portland Airport to Sofia Airport.
How old do you have to be to fly from Portland Airport to Sofia Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Sofia Airport.
What documentation or ID do you need to fly to Sofia Airport?
The travel and health documents required for your trip to Sofia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sofia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Portland to Sofia?
Based on momondo bookings for flights between Portland and Sofia, the leading airline is KLM, making up 45% of the total bookings. Other popular airlines include United Airlines with 27%, Air Canada with 14%, and Lufthansa with 14%.
Best airlines flying from Portland to Sofia
Compare and see reviews for airlines that fly from Portland to Sofia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $564 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $668 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom $746 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom $748 | Free Cancellation | Rating 6.7 7,136 reviews |
Traveling to a place near Sofia?
Book flights to Sofia if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Portland to Sofia?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Sofia. momondo saves you time and could save you money on your trip.
Can I find flights from Portland to Sofia with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Portland to Sofia flights to just show those with flexible booking policies.
How can momondo help me find flights from Portland to Sofia?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Sofia.
I’m not ready to book a flight from Portland to Sofia right now. Can momondo alert me if prices change?
Price alerts on flights to Sofia from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.