HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sofia

$590+ Cheap flights from Irving, TX to Sofia (SOF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SOF
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Irving to Sofia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Irving to Sofia are usually found in September or April, booked 39 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Irving to Sofia

Cheapest flights from Irving to Sofia
Explore the most affordable flight options available from Irving to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This oojo deal was found by Cheapflights users on 12/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:25 pmDFW - SOF
1 stop16h 25mTurkish Airlines
Sun 1/49:40 pmSOF - DFW
1 stop23h 20mTurkish Airlines
Deal found 12/17$1,535
This Orbitz deal was found by Cheapflights users on 12/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2812:20 pmDFW - SOF
2 stops17h 15mMultiple Airlines
Sun 1/47:05 pmSOF - DFW
2 stops51h 20mMultiple Airlines
Deal found 12/16$1,874
This Trip.com deal was found by Cheapflights users on 12/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:35 pmDFW - SOF
1 stop28h 10mTurkish Airlines
Sun 12/219:40 pmSOF - DFW
1 stop23h 20mTurkish Airlines
Deal found 12/16$2,207
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:47 amDFW - SOF
2 stops16h 33mMultiple Airlines
Sun 12/219:40 pmSOF - DFW
1 stop23h 20mMultiple Airlines
Deal found 12/16$2,326
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/287:00 amDFW - SOF
3 stops31h 45mUnited Airlines
Sun 1/42:00 pmSOF - DFW
2 stops56h 25mUnited Airlines
Deal found 12/17$2,879
This Air Canada deal was found by Cheapflights users on 12/16. 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.
Fri 12/197:05 amDFW - SOF
2 stops22h 30mAir Canada
Sun 12/216:05 amSOF - DFW
3 stops25h 01mAir Canada
Deal found 12/16$3,908
This Air Canada deal was found by Cheapflights users on 12/16. 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.
Sun 12/2812:20 pmDFW - SOF
2 stops17h 15mAir Canada
Sun 1/42:00 pmSOF - DFW
3 stops39h 32mAir Canada
Deal found 12/16$4,198

Find flight deals from Irving to Sofia

Keep the following information in mind while searching for Irving to Sofia flight deals. Data was last updated December 18, 2025.

Round-trip from

$590
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$1,401
From Irving to Sofia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irving 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 December 18, 2025.
Use the filters below to find and compare flights from Irving to Sofia that are best for you.

Fly from

Irving

Fly to

Sofia

Route

Depart

Return

Price

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Thu 4/2

9:30 pm-3:00 pm

1 stop33h 30m

Sofia

Thu 4/9

9:05 pm-12:45 pm

1 stop23h 40m

$590

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Sat 4/25

7:00 am-8:45 am

2 stops17h 45m

Sofia

Wed 5/6

9:05 pm-7:35 pm

1 stop30h 30m

$630

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Sat 4/25

10:30 pm-7:10 pm

2 stops36h 40m

Sofia

Wed 5/6

9:30 pm-6:58 pm

2 stops29h 28m

$637

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Tue 1/6

8:25 pm-8:50 pm

1 stop16h 25m

Sofia

Wed 1/21

9:35 am-6:40 pm

1 stop17h 05m

$642

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Thu 1/8

8:35 pm-8:50 pm

1 stop16h 15m

Sofia

Fri 1/23

9:40 pm-1:00 pm

1 stop23h 20m

$642

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Fri 1/23

7:00 am-8:45 am

2 stops17h 45m

Sofia

Sat 1/31

9:35 am-11:05 pm

2 stops21h 30m

$669

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Sat 1/31

5:15 am-6:20 pm

3 stops29h 05m

Sofia

Sat 2/7

6:25 am-10:49 pm

3 stops24h 24m

$678

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Thu 1/8

8:35 pm-8:50 pm

1 stop16h 15m

Sofia

Mon 1/26

9:35 am-6:40 pm

1 stop17h 05m

$682

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Fri 4/10

2:30 pm-8:45 am

1 stop34h 15m

Sofia

Sun 4/26

9:35 am-12:45 pm

1 stop35h 10m

$688

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Tue 1/13

3:55 pm-1:55 pm

1 stop14h 00m

Sofia

Tue 1/20

7:00 am-9:43 pm

2 stops22h 43m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 12 results
1
2

Best time to book a flight from Irving to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Irving 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 Irving to Sofia

How far ahead should I book a flight from Irving to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from Irving to Sofia. Price data was last updated on December 12, 2025.

To ensure you get the cheapest price possible for a flight from Irving to Sofia, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Irving to Sofia (average of $509). Flying from Irving to Sofia in June is currently the most expensive (average of $930). 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.

What is the cheapest time of day to fly from 1RV to SOF?

Find hourly flight availability from Irving 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 December 18, 2025.

It’s optimal to fly from Irving to Sofia at noon. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight in the morning.

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 December 18, 2025.
Peruse reviews from past customers who have flown with United Airlines, Turkish Airlines, and Lufthansa from Irving to Sofia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,091 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Turkish Airlines
7.3
Good
4,104 reviews
United Airlines
7.4
Good
9,091 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Lufthansa
6.8
Okay
7,634 reviews
United Airlines
7.4
Good
9,091 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

Related info for your journey

Find useful and relevant information for your journey from Irving 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 Irving?

    Located just 4.2 mi from the city center, Sofia is the airport most travelers will use when flying to Sofia from Irving. Booking flights from Irving to Sofia (SOF) should be relatively easy as there are 0 daily inbound flights from Irving from 3 different airlines.

  • How long is the flight from Irving to Sofia?

    There are many flights that can get you from Irving to Sofia in 33h 30m. Fly via Turkish Airlines or British Airways to get the fastest option. There are 5994 mi between Irving and Sofia. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Irving 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 Irving to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Irving to Sofia (average of $509). Flying from Irving to Sofia in June is currently the most expensive (average of $930). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Irving to Sofia

Discover the top 3 airlines that operate flights from Irving 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$597Average$1,030FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$638Average$1,167FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$730Average$1,077FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.