The cheapest times to fly from SOF to IAH are

  • January 8th to May 13th
  • October 8th to December 9th (except the week of November 26th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SOF to IAH is early November. Prices can be as high as $1304 for Saturday flights during mid July, or as low as $702 for Monday flights around early November.


When to Fly to Houston

Flying from Sofia (SOF) to Houston, TX (IAH) will usually cost between $710 to $1162 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $718. Due to high demand the most expensive time to fly is mid July, with an average price of $1218. Planning your trip to low-cost times can easily save you $500 on economy flights and even more on first-class flights. Generally, any price below $751 can be considered a good price for a round-trip SOF to IAH flight.

See below for a graph of average weekly prices for the SOF to IAH route. All prices are for round-trip tickets in USD.

SOF to IAH Flight Prices

Compared to other flights, the SOF to IAH flight is cheaper than the average and costs about as much as the average flight leaving from Sofia. The average price per mile (for a direct flight) is $0.08, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to IAH, and Tuesday the cheapest day to fly back into SOF. Saturdays are the most expensive days to fly to Houston, and Fridays are the most expensive days to return to Sofia. Selecting flights on the least expensive days could save you up to $59 (7%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $813. Return trip prices are from the IAH to SOF flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SOF to IAH can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 11 hour 56 minutes may not be realistic.


Flight Hacking SOF to IAH

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SOF to IAH — but Champion Traveler does!

Hack #1: Istanbul (SOF > IST > IAH)

  • Price for both tickets: $684
  • Average savings: $67 (8.89%)

See SOF to CPH flights

Hack #2: Copenhagen (SOF > CPH > IAH)

  • Price for both tickets: $690
  • Average savings: $62 (8.19%)

See SOF to IST flights

Hack #3: Dublin (SOF > DUB > IAH)

  • Price for both tickets: $704
  • Average savings: $47 (6.26%)

See SOF to DUB flights


Flight Questions Answered

Still have questions about flying from SOF to IAH? We’ve got answers.

Which airlines fly this route?

You can find 19 major airlines flying this route most often: Air Canada, Air France, Alaska, Alitalia, American, Austrian, British Airways, Condor, Delta, Emirates, Iberia, KLM, LOT, Lufthansa, Qatar Airways, Singapore Airlines, SWISS, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from George Bush Intercontinental/Houston Airport to Sofia Airport?

The distance between the two airports is roughly 6088 miles or 9798 kilometers.

How long does it take to fly from SOF to IAH?

The real-world flight time for a nonstop SOF to IAH flight is about 11 hour 56 minutes.

How many flights go between Sofia and Houston, TX?

It depends on the day of the week and the date, but a typical day might have around 20 available flights from SOF to IAH.


Airport Location Info


Departing Airport

Origination code SOF
Origination airport name Sofia Airport
City Sofia
Country Bulgaria
Latitude 42.7
Longitude 23.4

Return Airport

Destination code IAH
Destination airport name George Bush Intercontinental/Houston Airport
City Houston, TX
Country the United States
Latitude 30
Longitude -95.3


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.