$461 Cheap Flights from Houston (IAH) to Sofia (SOF)

View $461 flight on Sun, Nov 30, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF)

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Cheap Flights from Houston to Sofia (IAH-SOF)

Prices were available within the past 7 days and start at $461 for one-way flights and $578 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Nov 2 - Thu, Jan 15
IAH
Houston
SOF
Sofia
$578 Roundtrip, found 5 days ago
$578
Roundtrip
found 5 days ago
Select United flight, departing Sun, Nov 2 from Houston to Sofia, returning Thu, Jan 15, priced at $578 found 5 days ago
Air Canada
Mon, Jan 12 - Thu, Jan 22
IAH
Houston
SOF
Sofia
$580 Roundtrip, found 3 days ago
$580
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Jan 12 from Houston to Sofia, returning Thu, Jan 22, priced at $580 found 3 days ago
United
Sun, Oct 26 - Thu, Nov 6
IAH
Houston
SOF
Sofia
$580 Roundtrip, found 2 days ago
$580
Roundtrip
found 2 days ago
Select United flight, departing Sun, Oct 26 from Houston to Sofia, returning Thu, Nov 6, priced at $580 found 2 days ago
United
Tue, Dec 9 - Tue, Jan 27
IAH
Houston
SOF
Sofia
$583 Roundtrip, found 5 days ago
$583
Roundtrip
found 5 days ago
Select United flight, departing Tue, Dec 9 from Houston to Sofia, returning Tue, Jan 27, priced at $583 found 5 days ago
United
Tue, Nov 4 - Fri, Jan 16
IAH
Houston
SOF
Sofia
$583 Roundtrip, found 5 days ago
$583
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 4 from Houston to Sofia, returning Fri, Jan 16, priced at $583 found 5 days ago
United
Wed, Apr 8 - Wed, Apr 15
IAH
Houston
SOF
Sofia
$584 Roundtrip, found 1 day ago
$584
Roundtrip
found 1 day ago
Select United flight, departing Wed, Apr 8 from Houston to Sofia, returning Wed, Apr 15, priced at $584 found 1 day ago
Air Canada
Tue, Mar 3 - Tue, Mar 17
IAH
Houston
SOF
Sofia
$586 Roundtrip, found 1 day ago
$586
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Mar 3 from Houston to Sofia, returning Tue, Mar 17, priced at $586 found 1 day ago
British Airways
Wed, Apr 8 - Mon, Apr 20
IAH
Houston
SOF
Sofia
$612 Roundtrip, found 1 day ago
$612
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Apr 8 from Houston to Sofia, returning Mon, Apr 20, priced at $612 found 1 day ago
Air France
Tue, Dec 9 - Tue, Jan 27
IAH
Houston
SOF
Sofia
$647 Roundtrip, found 5 days ago
$647
Roundtrip
found 5 days ago
Select Air France flight, departing Tue, Dec 9 from Houston to Sofia, returning Tue, Jan 27, priced at $647 found 5 days ago
KLM
Tue, Dec 9 - Tue, Jan 27
IAH
Houston
SOF
Sofia
$647 Roundtrip, found 5 days ago
$647
Roundtrip
found 5 days ago
Select KLM flight, departing Tue, Dec 9 from Houston to Sofia, returning Tue, Jan 27, priced at $647 found 5 days ago

Alternative airports near Sofia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sofia Airport SOF. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $723
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $723
Flights from Houston (IAH) to Sofia (SOF)
Origin airport
George Bush Intercontinental
Destination airport
Sofia
Airlines serving
Air Canada, Austrian Airlines, British Airways, Emirates, ITA Airways, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$578
Distance
6088 mi

Houston to Sofia Flights

The cheapest times to fly from Houston to Sofia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Sofia are during the month of November. You can find some of the cheapest flights from Houston to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Sofia

Sunday is one of the best days to book for cheap flights from Houston to Sofia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Sofia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $461 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Sofia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Sofia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF) cost?
Grab a cheap one-way flight from $461 or cheap return flight from $578 from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF)?
November is the most affordable month to fly from IAH to SOF. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest IAH to SOF flight.
How many flights per day from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF)?
Nonstop flights from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAH to SOF?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF)?
To touch down at Sofia Airport (SOF) on time, book a flight that takes off from George Bush Intercontinental Airport (IAH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF) last-minute?
Last-minute bookings from IAH to SOF are usually more expensive. To lock in the best rates, start looking for flights well in advance. That said, if you're flexible with your travel plans, you may find a cheap fare right before your journey.
Is it cheaper to book an IAH to SOF flight and hotel package?
Securing an IAH to SOF flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Sofia Airport (SOF)?
It's usually possible to reschedule or cancel your IAH to SOF flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.