SOF

$266 Find Cheap Flights to Sofia - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$635
Typical prices: $721-$1,147
Multiple Airlines
Sun 12/2Sun 12/9
EWR - SOF • 2 stops
Cheapest one-way
$274
Typical prices: $409-$690
Multiple Airlines
Tue 11/27
ORD - SOF • 3 stops
Top airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
Top routes
Cheapest • 12% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 25 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
+1
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sofia!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights to Sofia

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Sofia

Wed, Dec 2 - Wed, Dec 9
Multiple Airlines Logo
7:35 pm - 7:00 pmEWR  Newark-SOF Sofia
16h 25m2 stops Reykjavik Keflavik Intl Rome Fiumicino
Multiple Airlines Logo
6:30 pm - 9:35 pmSOF  Sofia-EWR Newark
34h 05m3 stops Rome Fiumicino Lisbon Humberto Delgado Porto
$635Multiple Airlines
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
12:10 am - 11:20 amEWR  Newark-SOF Sofia
28h 10m2 stops Lisbon Humberto Delgado Milan Malpensa
Multiple Airlines Logo
9:25 pm - 10:10 pmSOF  Sofia-EWR Newark
31h 45m3 stops Bristol Madrid Barajas Lisbon Humberto Delgado
$642Multiple Airlines
Wed, Apr 14 - Tue, Apr 20
Turkish Airlines Logo
10:35 am - 8:45 amMIA  Miami-SOF Sofia
15h 10m1 stop Istanbul
Turkish Airlines Logo
9:10 pm - 8:35 pmSOF  Sofia-MIA Miami
30h 25m1 stop Istanbul
$665Turkish Airlines
Wed, Apr 14 - Tue, Apr 20
Turkish Airlines Logo
10:35 am - 8:45 amMIA  Miami-SOF Sofia
15h 10m1 stop Istanbul
Turkish Airlines Logo
9:10 pm - 8:35 pmSOF  Sofia-MIA Miami
30h 25m1 stop Istanbul
$668Turkish Airlines
Tue, Feb 2 - Tue, Feb 16
Lufthansa Logo
9:50 pm - 10:55 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 05m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:25 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 stop Frankfurt am Main
$688Lufthansa
Wed, Mar 3 - Wed, Mar 10
LOT Logo
10:10 pm - 1:50 pmLAX  Los Angeles-SOF Sofia
29h 40m1 stop Warsaw Frederic Chopin
LOT Logo
2:35 pm - 8:10 pmSOF  Sofia-LAX Los Angeles
15h 35m1 stop Warsaw Frederic Chopin
$688LOT
Tue, Mar 2 - Wed, Mar 10
LOT Logo
9:50 pm - 1:50 pmORD  Chicago O'Hare Intl-SOF Sofia
32h 00m1 stop Warsaw Frederic Chopin
LOT Logo
2:35 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 20m1 stop Warsaw Frederic Chopin
$694LOT
Mon, Apr 5 - Mon, Apr 19
SWISS Logo
7:05 pm - 10:20 amORD  Chicago O'Hare Intl-SOF Sofia
31h 15m1 stop Zurich
SWISS Logo
3:50 pm - 3:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
32h 05m1 stop Zurich
$694SWISS
Wed, Apr 7 - Wed, Apr 14
Lufthansa Logo
3:35 pm - 6:45 pmORD  Chicago O'Hare Intl-SOF Sofia
19h 10m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:20 am - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
21h 35m1 stop Frankfurt am Main
$695Lufthansa
Wed, Mar 31 - Wed, Apr 14
SWISS Logo
7:35 pm - 3:05 pmSFO  San Francisco-SOF Sofia
33h 30m1 stop Zurich
SWISS Logo
11:05 am - 4:15 pmSOF  Sofia-SFO San Francisco
15h 10m1 stop Zurich
$703SWISS
Booking Insights

Price, demand and travel trends for flights to Sofia

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What is the cheapest flight to Sofia?

Newark Airport to Sofia is the cheapest route at $635 round-trip, found in the past 5 days on KAYAK. Chicago O'Hare Intl Airport to Sofia is the most popular connection with round-trip deals from $688.

How much is a flight to Sofia?

On average, a round-trip flight from the United States to Sofia costs $908, based on KAYAK data over the past 12 months. Round-trip fares from Boston average $795, while Philadelphia runs a bit higher at $806.

What is the cheapest day to fly to Sofia?

Tuesday is the cheapest day to fly to Sofia at $897 round-trip on average over the past 12 months on KAYAK. Saturday is the most expensive at $983.

What’s the cheapest month to fly to Sofia?

•February is the cheapest month to fly to Sofia with an average price of $607 round-trip.
•June ($1,126) and July ($1,000) are the most expensive.

Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Sofia?

Morning flights to Sofia are the cheapest at $889 round-trip on average. Afternoon flights are the most expensive at $952.

What is a good deal for flights to Sofia?

Flights under $721 are considered a good deal. 25% of KAYAK users found round-trip flights to Sofia at or below these prices, with the lowest fares from:
•Boston $548
•Philadelphia $574
•New York $654.

When are flights to Sofia the cheapest?

Flights to Sofia are cheapest 25 weeks before departure. Booking in this window typically costs about 18% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight to Sofia

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Gabriel Leigh

Gabriel Leigh

Expert on Turkish Airlines

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on KLM

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Ramsey Qubein

Ramsey Qubein

Expert on LOT

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Scott Laird

Scott Laird

Expert on Austrian Airlines

Originally from Anchorage, Alaska, Scott is a frequent contributor to Fodor’s Travel Guide, Conde Nast Traveler, TravelAge West, and TravelPulse. He holds a Bachelor of Science in Organizational Management from Alaska Pacific University and a Master of Science in Airline Management from Embry-Riddle Aeronautical University, and has worked in the airline and hotel industries and as a travel consultant.

Key details for flights to Sofia

Low season

February

Cheapest flight

$274
Beat the crowds with an average 58% drop in travelers.
The most popular month to fly with an average 98% increase in travelers.
One-way flight from Chicago O'Hare Intl Airport to Sofia

When to book flights to Sofia

Are your dates flexible? Find out the best times to travel to Sofia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your questions about flights to Sofia, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • How do I know if a flight to Sofia is a good deal?

    A good deal on a flight to Sofia is around $721 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How far is Sofia from downtown Sofia?

    Sofia is 4.2 mi from downtown Sofia.

  • Which city has the cheapest flights to Sofia?

    Based on fares booked in the past 5 days, the cheapest flights to Sofia are from New York, starting at $635 round-trip, and from Chicago, starting at $688 round-trip.

  • How expensive are last-minute flights to Sofia?

    Last-minute fares to Sofia (booked within 2 weeks of departure) are typically 12% higher than the average round-trip fare of $908.

  • What is the difference between the most popular and the most frequent airline at Sofia?

    Turkish Airlines operates the most flights from the United States to Sofia at 0 per week, while Lufthansa is the airline most often selected by KAYAK users searching for flights from the United States to Sofia. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

  • How far is Sofia Airport from the Alexander Nevsky Cathedral?

    Sofia Airport is located approximately 6 miles from the popular Alexander Nevsky Cathedral. If you are traveling between these two locations by car, it will take around 15 to 20 minutes. If you instead opt to use public transportation, such as the local bus, the trip will take upwards of 30 minutes.

  • What are good hotels near Sofia Airport?

    The Ibis is an affordable choice that is only a 2-minute drive to Sofia Airport and has some rooms that provide guests with views of the surrounding city and Vitosha Mountain. The Best Western Premier is a 4-star hotel that is a 3-minute drive to the airport and less than a 15-minute drive to the National Art Gallery.

  • Is there is a prayer room in Sofia Airport?

    There is a prayer room that is located on the first floor of Terminal 2, next to the Departure Gate C1. It is open during standard business hours and can be visited by all travelers, regardless of their personal faith.

  • What dining options does Sofia Airport have?

    Hoping to grab a bite to eat either after your flight to Sofia lands or before your next flight takes off? Visit some of the many dining options located in Sofia Airport, such as the casual Deli Sandwich Bar located in Terminal 2, or the World News Cafe located in the public area before security and immigration. Both choices serve casual sandwiches and snacks, as well as a variety of alcohol and non-alcoholic beverages.

  • Does Sofia International Airport have any eco-friendly practices?

    Yes. SOF has integrated sustainable practices into its daily business operations such as having a ground run-up enclosure that reduces the amount of residual noise emitted by aircraft engines. The airport has an active energy and carbon management policy company to reduce carbon emissions and encourages waste reduction through recycling.

  • Can I rent a car at Sofia International Airport?

    Yes. SOF has various car rental providers operating in both terminals of the airport. The rental counters are located in the arrival hall after baggage claim. Various rental agencies have different return policies, and the requirements for renting a car include a valid driver’s license and another form of identification such as a passport.

  • What is the policy regarding unaccompanied minors at Sofia International Airport?

    Parents or guardians with kids who will be flying unaccompanied are required to inform their respective airlines in advance because the policies vary between the different airlines and they may require specific travel documents and photo identification. An airline representative will take your child through all the airport formalities, and provide you a pass you can use to pick up your kid from the gate.

  • Does Sofia International Airport offer accessibility services?

    Passengers with limited or reduced mobility at SOF can request an assistance service ahead of time via their airline which will help them navigate the airport. The airport has wheelchair ramps, and the restrooms are well-adapted with accessible stalls. There are elevators for accessing the upper floors, and calling points with a telephone for passengers with reduced mobility.

Your guide to booking Sofia flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to Sofia, book around 25 weeks before departure. Based on KAYAK data from the last 12 months, fares are historically about 18% lower during this window than last-minute fares.
  • For flights to Sofia, a good round-trip fare is around $721. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to Sofia in February. Round-trip fares historically average $607, making February the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat-selection costs on budget carriers.
    • Verify whether you need any travel documents beyond ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to morning to save up to $63 per round-trip. Morning flights to Sofia average $889 compared to $952 for noon flights.
  • Once you arrive in Sofia, a few great places to start are Vasil Levski National Stadium, National Palace of Culture and Central Sofia Market Hall. These are popular with first-time visitors and can give you a good feel for the area.
  • If you plan on doing a substantial amount of shopping while visiting Sofia, make sure to stop at Sofia Airport’s VAT refund counter located in Terminal 2 before security and immigration. This counter is where you can submit your paperwork to receive a refund on any of the taxes you paid on your big purchases.
  • Hoping to have a particularly relaxing travel experience in Sofia Airport? Pay a visit to one of the several private lounges that are located throughout the different terminals. These lounges offer complimentary snacks, comfortable seating, and TVs, as well as the option of signing up for a rewards card in order to save money when purchasing your access passes.
  • For those that are traveling to Sofia with children, stop by one of the four different nursing rooms throughout the airport. These nursing rooms provide families with a quiet, private place to change their child, and they even offer complimentary cribs, in case your baby needs a quick nap after a long flight to Sofia.
  • Interested in learning more about Sofia Airport? Sign up for one of the airport’s guided tours in order to get a behind-the-scenes look at this popular travel hub. Reservations must be made at least 5 days in advance, and the tour covers approximately 3 miles.
  • If you would like to use public transportation to travel between the airport and downtown Sofia, consider using the local bus. Bus lines 84 and 184 will both take you directly from the airport to several stops in the city center, and the journeys generally takes less than 45 minutes if there is no additional traffic.
  • If you are flying with your pet to Sofia International Airport (SOF), inform your airline ahead of time. Your airline may require valid documentation for your pet such as health certificates and rabies vaccination proof.
  • American citizens flying to SOF will require a valid passport for visits that are less than three months. A visa will be required if the duration of stay is more than three months.

Reviews of the top 5 airlines flying to Sofia

 
Need help choosing which airline to fly with to Sofia? 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 1595 reviews
7.8Boarding
7.4Food
8.4Crew
7.2Entertainment
7.7Comfort
Airline reviews

The flight itself was fine, food was expired and gross, staff were mostly amazing! KLM messed up rebooking for our first two flights that got cancelled and we almost didn’t make it to Amsterdam for an additional two days

4.0 OkayJessica, Sep 2026
Read more KLM reviews

The flight itself was fine, food was expired and gross, staff were mostly amazing! KLM messed up rebooking for our first two flights that got cancelled and we almost didn’t make it to Amsterdam for an additional two days

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

Had to cancel and rebook, KLM connection was cancelled prior to departure, ended up flying to Munich on non-Delta carrier.

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

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

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.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

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!

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

Premium has less space than it used to, and is no longer very comfortable. Electricity socket did not work. The gf food was the usual boring chicken and rice with ratatui. Crew was nice.

The flight crew on board w as wonderful! Polite and willing to help. The land crew at the check in wasn't so good. Especially the manager at Newark airport was very not willing to help, disrespectful and with no pation. She didn't let my husband, who needs a wheelchair wait on the wheelchair for his helper who had a problem with the boarding pass (where she didn't want to help). She forced him to get up from the wheelchair!!!!!!!! Shame on such airline!!!!!!! She didn't want to tell her name. At WAW airport the man who pushed his wheelchair was very rude and didn't want to help put his carry ons in place on the plane. He also didn't let his helper go with him, but the on board staff helped him!

Old plane excellent svce and good Entertainment system broken from the start

Food seats were good Flight was delayed for over an hour, missed connecting flight, lot automatically rescheduled us to a new flight which was good but lost approximately 4 hours. Not a good way to start a vacation.

Stuck on a plane for 6 hours due to a technical or mechanical issue.

Boarding was a madhouse. Airport staff was completely disinterested in communicating about the delays. Never again.

The seats are very narrow. Communication regarding bids for better seating could be better

During the flight, the fleas biting me in the plane.

The crew and flight were amazing . However , my bag’s locker got broken and no refund provided . Everything else was amazing except this bad incident that ruined my experience

The seats are small and the movie selection was disappointing. However, the food was excellent and the cabin crew was attentive and kind.

First Flight got delayed had to get rebook for another plane ride to connect the next day the process was not helpful at all had to figure the whole processs myself poor service plane was small and customer service was horrible will not fly this airline again

Excellent overall. Boarding was a mess. Queue up too early, takes too long for them to start boarding but they want everyone to queue up and wait and wait.

When getting to our seats a blanket, headphones and pillow where there already. The food was very good and plentiful. I liked when they came around w/hot towels to freshen up with. Slippers, socks and an eye mask was a nice surprise. My husband and I have mobility issues and the transporters were absolutely wonderful and helpful w/the wheelchairs at each stop. Getting from one gate to the next they were a blessing.

The taxi drivers are very rude. Didn’t wait. They said you come in 5minutes or I leave. Did not leave any messages on front desk and they left. We have to hire new cabs in turkey.

Everything was good except for the seating arrangements. We could not get seats to be seated together with my wife. We’re unfortunately.

My first time in business class The in flt staff was outstanding in every aspect of service, the food was amazing, the business seat space made the 11 hour journey easy peazy

It was good, but always can be better. The airplane was old.

I always travel on Turkish Airlines but seriously I am I am considering to change because this is not the first time that the flight attendant are rude and they dont help. I asked for cold water with ice 5 times and I got water with no ice and this is not the first time to ask for something and you dont get it. Also I noticed this behavior only towards people who are not turkish.

There were not enough extra leg room options to purchase. Also the seat Infront of mine was broken and the gentleman literally laid back into my lap for the whole trip. This was the most uncomfortable trip I have ever been on

A lot of things can be done to improve in flight experience

Service was slow Flight was very loud at back of plane

There was no internet on the flight. As an executive flying during prime business hours, having internet is critical for a smooth experience. This impacted productivity and time that will need to be spent later to do the work I could have done on flight.

Terrible boarding - 4 flights boarded from the same gate. Chaos there; long ramps to the plane.

Flight delay in lax which delayed our connecting flight to Copenhagen. Was placed on standby the following day and got delayed again at Scandinavian air. Bad bad counter service at ar Canada in Toronto by the name of Camilla who said that she was doing us a courtesy for even finding a earlier flight for us after we the customer are the ones being inconvenient by the cancellation of our flight. Btw, we are going on a tour. Air Canada is the worse

The flight itself was ok, but one member of the crew was miserable

Fine except from Chicago to moline three different gate changes and flight times

The food could have been better and the entertainment could have better movies or streaming.

Connection times always good online, but not in reality when first leg is delayed (2 out of 2 times this trip).

Ridiculous boarding. Enter the gate, walk down a staircase with bags, exit a building, get on a crowded bus, dropped off a few meters away from the aircraft, walk with bags to another set of stairs to board the aircraft. And all that during a pouring down rain, and with children. Ridiculous!!!

Lufthansa no longer offers any refreshments and snacks on short i.e., around 2 hrs flight. We still had full staff stewards/stewardesses. No idea why they were needed as there was no work for them during the flight

Boarding was a little chaotic. United checkin staff was truly excellent and saved the day for me. Food was great. Comfort so so. Flight was good

The flight and staff were perfect. No notes. Amazing experience overall.

I'm a nervous, autistic adult. The staff were very friendly and answered my questions and came by at regular intervals to check everyone's comfort. They even resolved a fight between two couples in front of me!

The new buisness class pods are 100% worth it. Loved it.

Pretty bad. No welcome drink (the Lufthansa signature drink they advertised but did not serve). No 2 round of beverages. No coffee to end your meal. No snack before landing on an overseas flight. Mediocre everything and unattentive staff. Munich and Frankfurt as connecting flight airports are terribly big (20 min walk for transfer!) and confusing. Will not fly again.

The agent, who took my mother to her gate, kept talking with one of her male coworkers and treating my mother like a sack of potatoes. She was ignoring my questions because she was too busy flirting with her male colleague. This was a very unprofessional behavior. We also had to wait for close to half an hour for an agent to arrive.

Very good flight, only problem is the boarding process where some peoples do not have manners and do not how to fly ( preparing your documents, oversized carry-ons, not understanding or feigning to not understand directives).

I really like it and travel to Europe and back with Lufthansa, but it is getting expensive, a bit beyond my me

Not available crew to load the luggage for all the passengers,comon situation for local European destinations , not acceptable situation, never Lufthansa again 😉 🙄

Flight was overbooked. Crew did a great job but passengers weren’t nice and really not patient. Flying in these times is not the best idea tbh.

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Velingrad
Sandanski

More options for your flight to Sofia