RDU - SOF

$329 Find Cheap Flights from Raleigh to Sofia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Raleigh to Sofia departing on 1/15. 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 Sofia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Raleigh to Sofia, 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 Raleigh to Sofia, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$534
Overall average: $738
United Airlines
Thu 1/15Mon 1/19
RDU - SOF • 3 stops
Cheapest one-way
$329
Multiple Airlines
Thu 1/15
RDU - SOF • 2 stops
When to travel
March
Cheapest • 30% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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
Flight Deals

Cheap Flights from Raleigh to Sofia (RDU-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Raleigh to Sofia 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 Raleigh to Sofia

Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
9:25 am - 10:45 pm
RDU
-
SOF
30h 20m3 stops
United Airlines Logo
6:10 am - 1:45 pm
SOF
-
RDU
14h 35m1 stop
$534United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
6:00 am - 10:45 pm
RDU
-
SOF
33h 45m3 stops
United Airlines Logo
6:10 am - 1:45 pm
SOF
-
RDU
14h 35m1 stop
$535United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
9:25 am - 10:45 pm
RDU
-
SOF
30h 20m3 stops
United Airlines Logo
6:10 am - 9:20 pm
SOF
-
RDU
22h 10m2 stops
$537United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
4:15 pm - 1:50 pm
RDU
-
SOF
14h 35m1 stop
United Airlines Logo
6:10 am - 1:45 pm
SOF
-
RDU
14h 35m1 stop
$541United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
6:00 am - 10:45 pm
RDU
-
SOF
33h 45m3 stops
United Airlines Logo
1:45 pm - 11:44 pm
SOF
-
RDU
40h 59m2 stops
$542United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
4:15 pm - 1:50 pm
RDU
-
SOF
14h 35m1 stop
United Airlines Logo
6:10 am - 1:45 pm
SOF
-
RDU
14h 35m1 stop
$543United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
9:25 am - 10:45 pm
RDU
-
SOF
30h 20m3 stops
United Airlines Logo
2:20 pm - 11:44 pm
SOF
-
RDU
16h 24m2 stops
$545United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
6:15 am - 10:45 pm
RDU
-
SOF
33h 30m2 stops
United Airlines Logo
6:10 am - 1:45 pm
SOF
-
RDU
14h 35m1 stop
$546United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
4:15 pm - 1:50 pm
RDU
-
SOF
14h 35m1 stop
United Airlines Logo
6:10 am - 11:44 pm
SOF
-
RDU
24h 34m2 stops
$550United Airlines
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
10:00 am - 1:50 pm
RDU
-
SOF
20h 50m2 stops
United Airlines Logo
6:10 am - 11:44 pm
SOF
-
RDU
24h 34m2 stops
$555United Airlines
Booking Insights

KAYAK's insights & trends for Raleigh to Sofia flights

Get data-powered insights and trends into flights from Raleigh to Sofia 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 Raleigh to Sofia?

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

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

What is the cheapest month to fly from Raleigh to Sofia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Raleigh to Sofia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Raleigh to Sofia is March, where tickets cost $704 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,851 and $1,385 respectively.

Good to know

Low seasonDecember
Cheapest flight$329
Best time to beat the crowds but there is an average 85% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Raleigh to Sofia

When to book flights from Raleigh to Sofia

Are your dates flexible? Find out the best times to travel from Raleigh to Sofia 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 Raleigh to Sofia

  • What is the cheapest flight from Raleigh to Sofia?

    In the last 3 days, the lowest price for a flight from Raleigh to Sofia was $329 for a one-way ticket and $534 for a round-trip.

  • Do I need a passport to fly between Raleigh and Sofia?

    A passport is required to fly from Raleigh to Sofia.

  • Which airports will I be using when flying from Raleigh to Sofia?

    On your way to Sofia, you’ll fly out from Raleigh-Durham. You’ll be landing at Sofia.

  • Which aircraft models fly most regularly from Raleigh to Sofia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Raleigh to Sofia?

    Star Alliance is the only airline alliance operating flights between Raleigh and Sofia.

  • Which is the best airline for flights from Raleigh to Sofia, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Raleigh to Sofia are United Airlines and Lufthansa. With an average price for the route of $882 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $968 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Raleigh to Sofia?

    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 Raleigh to Sofia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Raleigh to Sofia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from Raleigh 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 Raleigh to Sofia?

    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 Sofia with an airline and back to Raleigh with another airline. Booking your flights between Raleigh and SOF 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 Raleigh to Sofia?

    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 Sofia from Raleigh 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 Raleigh to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Raleigh to Sofia. 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 Raleigh 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.
7.4
United AirlinesOverall score based on 9072 reviews
7.1Entertainment
7.3Comfort
6.6Food
8.1Crew
7.7Boarding
Airline reviews

They charged a fee for 1st bag checked. Others in same party were free.

6.0 GoodAnonymous, Dec 2025
TPA - FRA
Read more United Airlines reviews

They charged a fee for 1st bag checked. Others in same party were free.

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.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight and crew were great. United didn't inform crew of immigration process which was disappointing!

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

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

Information on your arrival and departure airports