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Sofia

$292+ Cheap flights from Houston to Sofia (SOF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SOF
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Houston to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$569
(British Airways)

One-way from

$292
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$752
From Houston to Sofia
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One-way flight from Houston to Sofia
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Highest demand for flights based on searches. 25% potential increase in price ($336 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Houston to Sofia

Cheapest flights from Houston to Sofia
Explore the most affordable flight options available from Houston to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This British Airways deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:50 pmIAH - SOF
1 stop16h 30mBritish Airways
Wed 12/249:00 pmSOF - IAH
1 stop31h 00mBritish Airways
Deal found 9/17$569
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/84:30 pmIAH - SOF
1 stop22h 15mUnited Airlines
Wed 12/246:10 amSOF - IAH
1 stop20h 05mUnited Airlines
Deal found 9/17$575
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:20 amIAH - SOF
2 stops21h 50mUnited Airlines
Wed 12/246:10 amSOF - IAH
1 stop20h 05mUnited Airlines
Deal found 9/17$576
This Air Canada deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:20 amIAH - SOF
2 stops17h 55mAir Canada
Wed 12/246:10 amSOF - IAH
2 stops35h 04mAir Canada
Deal found 9/17$578
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:20 amIAH - SOF
2 stops22h 30mUnited Airlines
Wed 12/246:10 amSOF - IAH
1 stop20h 05mUnited Airlines
Deal found 9/17$580
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/74:50 pmIAH - SOF
1 stop21h 55mUnited Airlines
Thu 12/252:35 pmSOF - IAH
2 stops18h 22mUnited Airlines
Deal found 9/17$581
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/910:14 amIAH - SOF
2 stops24h 06mUnited Airlines
Thu 12/252:35 pmSOF - IAH
2 stops18h 22mUnited Airlines
Deal found 9/17$586
This Air Canada deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:10 amIAH - SOF
2 stops22h 40mAir Canada
Wed 12/246:10 amSOF - IAH
2 stops35h 04mAir Canada
Deal found 9/17$589
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:33 amIAH - SOF
2 stops22h 17mUnited Airlines
Thu 12/252:35 pmSOF - IAH
2 stops18h 22mUnited Airlines
Deal found 9/17$590
This British Airways deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:50 pmIAH - SOF
1 stop29h 25mBritish Airways
Wed 12/249:00 pmSOF - IAH
1 stop31h 00mBritish Airways
Deal found 9/17$619
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:30 amIAH - SOF
2 stops21h 20mUnited Airlines
Wed 12/246:10 amSOF - IAH
1 stop20h 05mUnited Airlines
Deal found 9/17$632
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:30 pmIAH - SOF
1 stop13h 20mUnited Airlines
Thu 12/252:35 pmSOF - IAH
2 stops18h 22mUnited Airlines
Deal found 9/17$636

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Houston to Sofia that are best for you.

Fly from

Houston

Fly to

Sofia

Route

Depart

Return

Price

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Tue 12/9

3:50 pm-8:10 pm

1 stop20h 20m

Sofia

Wed 12/24

9:00 pm-2:05 pm

1 stop25h 05m

$569

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Sun 12/7

7:20 am-1:10 pm

2 stops21h 50m

Sofia

Wed 12/24

6:10 am-6:15 pm

1 stop20h 05m

$576

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Sun 12/7

4:50 pm-10:45 pm

1 stop21h 55m

Sofia

Thu 12/25

2:35 pm-12:57 am

2 stops18h 22m

$581

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Tue 12/9

11:57 am-1:15 pm

2 stops17h 18m

Sofia

Wed 12/24

6:10 am-11:16 pm

2 stops25h 06m

$586

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Thu 12/11

4:30 pm-1:50 pm

1 stop13h 20m

Sofia

Thu 12/25

2:35 pm-12:57 am

2 stops18h 22m

$636

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Fri 12/12

6:30 am-11:50 am

2 stops21h 20m

Sofia

Thu 12/25

2:35 pm-12:57 am

2 stops18h 22m

$642

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Sun 12/7

3:50 pm-4:20 pm

1 stop16h 30m

Sofia

Sun 12/28

2:30 pm-2:05 pm

1 stop31h 35m

$674

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Sun 12/7

4:50 pm-10:45 pm

1 stop21h 55m

Sofia

Mon 12/29

6:10 am-12:30 am

2 stops26h 20m

$686

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Wed 12/10

4:30 pm-1:50 pm

1 stop13h 20m

Sofia

Mon 12/29

6:10 am-12:30 am

2 stops26h 20m

$691

HoustonSofia

IAH - SOF

IAHSOF

Houston George Bush Intcntl

Tue 12/9

3:50 pm-8:10 pm

1 stop20h 20m

Sofia

Mon 12/29

5:25 pm-2:05 pm

1 stop28h 40m

$727

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 31 results
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Best time to book a flight from Houston to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Houston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston to Sofia

What is the cheapest time of day to fly from HOU to SOF?

Find hourly flight availability from Houston to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s typically best to fly out from Houston to Sofia at noon. Doing so could potentially save you 41% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Houston to Sofia?

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated September 17, 2025.
Get a feel of what it's like to fly with United Airlines, Turkish Airlines, and Lufthansa from Houston to Sofia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Turkish Airlines
7.3
Good
3,965 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Lufthansa
6.8
Okay
7,409 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
British Airways
6.7
Okay
7,367 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Related info for your journey

Find useful and relevant information for your journey from Houston to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from Houston?

    If you book a flight to Sofia from Houston, you will be flying to Sofia, which is the city’s only airport. Sofia (SOF) is located 4.2 mi from the center of Sofia. There are 0 flights from Houston to Sofia per day from 4 different airlines.

  • How long is the flight from Houston to Sofia?

    Airlines like British Airways and United Airlines fly from Houston to Sofia in about 20h 20m. The time it takes to get you to your destination can typically vary by up to 1h 55m. The distance from Houston to Sofia is about 6085 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Houston to Sofia round-trip?

    Flying on British Airways is currently your cheapest option to Sofia, with prices starting at $575. Additional round-trip tickets that might be worth considering are offered by Lufthansa and Turkish Airlines, with the lowest prices starting at $599 and $633, respectively. British Airways is currently priced 40% below the average price you’ll pay for this route.

  • Can I find deals for flights from Houston to Sofia that include hotel bookings?

    Yes. In addition to deals on Houston to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Sofia.

  • Can I find deals for business class flights from Houston to Sofia?

    Yes. Cheapflights offers flight deals from Houston to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Houston to Sofia (average of $632). Flying from Houston to Sofia in June is currently the most expensive (average of $1,183). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Houston to Sofia

Discover the top 4 airlines that operate flights from Houston to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$575Average$853FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$599Average$1,064FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$633Average$802FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$840Average$1,080FlexibilityNo cancel feeOn-time69%

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