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Sofia

$519+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — SOF
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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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

Find 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 October 23, 2025.

This Flightnetwork deal was found by Cheapflights users on 10/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:05 amDFW - SOF
2 stops27h 10mAir Canada
Tue 11/256:00 amSOF - DFW
2 stops23h 39mAir Canada
Deal found 10/21$519
This Mytrip deal was found by Cheapflights users on 10/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:20 pmDFW - SOF
2 stops17h 20mMultiple Airlines
Sat 12/136:25 amSOF - DFW
1 stop16h 00mMultiple Airlines
Deal found 10/22$520
This Mytrip deal was found by Cheapflights users on 10/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:05 amDFW - SOF
2 stops22h 40mMultiple Airlines
Tue 11/256:00 amSOF - DFW
1 stop16h 25mMultiple Airlines
Deal found 10/21$524
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/254:28 pmDFW - SOF
2 stops17h 52mUnited Airlines
Thu 12/116:00 amSOF - DFW
1 stop16h 25mUnited Airlines
Deal found 10/21$532
This Justfly.com deal was found by Cheapflights users on 10/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:15 pmDFW - SOF
1 stop13h 10mLufthansa
Sun 12/146:10 amSOF - DFW
1 stop16h 15mLufthansa
Deal found 10/22$535
This Lufthansa deal was found by Cheapflights users on 10/21. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/254:28 pmDFW - SOF
2 stops17h 52mLufthansa
Wed 12/106:10 amSOF - DFW
2 stops23h 40mLufthansa
Deal found 10/21$542
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/277:00 amDFW - SOF
2 stops31h 45mUnited Airlines
Mon 12/86:10 amSOF - DFW
1 stop16h 15mUnited Airlines
Deal found 10/21$543
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/241:46 pmDFW - SOF
2 stops24h 59mUnited Airlines
Fri 12/126:05 amSOF - DFW
2 stops25h 49mUnited Airlines
Deal found 10/21$544
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/232:26 pmDFW - SOF
2 stops19h 34mUnited Airlines
Thu 12/116:00 amSOF - DFW
1 stop16h 25mUnited Airlines
Deal found 10/21$545
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Sat 12/612:20 pmDFW - SOF
2 stops21h 55mUnited Airlines
Sat 12/132:25 pmSOF - DFW
2 stops39h 07mUnited Airlines
Deal found 10/22$547
This Flightnetwork deal was found by Cheapflights users on 10/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:20 pmDFW - SOF
2 stops22h 00mLufthansa
Tue 11/256:00 amSOF - DFW
1 stop16h 25mLufthansa
Deal found 10/21$548
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/277:00 amDFW - SOF
2 stops31h 45mUnited Airlines
Wed 12/102:00 pmSOF - DFW
2 stops17h 54mUnited Airlines
Deal found 10/21$549

Cheap flight deals from Irving to Sofia

Keep the following information in mind while searching for Irving to Sofia flight deals. Data was last updated October 23, 2025.

Round-trip from

$496
(Mytrip)

Popular in

June

Cheapest in

September

Average price

$683
From Irving to Sofia
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($315 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 23, 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

Sat 12/6

12:20 pm-1:40 pm

2 stops17h 20m

Sofia

Sat 12/13

6:25 am-2:25 pm

1 stop16h 00m

$520

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Tue 11/25

11:36 am-1:15 pm

2 stops17h 39m

Sofia

Tue 12/9

6:00 am-9:39 pm

2 stops23h 39m

$532

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Mon 11/24

6:15 pm-10:45 pm

2 stops20h 30m

Sofia

Thu 12/11

6:00 am-2:25 pm

1 stop16h 25m

$532

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Mon 11/24

6:15 pm-10:45 pm

2 stops20h 30m

Sofia

Mon 12/8

6:10 am-2:25 pm

1 stop16h 15m

$532

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Wed 11/26

5:35 pm-6:20 pm

2 stops16h 45m

Sofia

Sat 12/6

6:25 am-2:25 pm

1 stop16h 00m

$532

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Wed 11/26

5:35 pm-6:20 pm

2 stops16h 45m

Sofia

Mon 12/8

6:10 am-2:25 pm

1 stop16h 15m

$532

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Thu 11/27

7:00 am-10:45 pm

2 stops31h 45m

Sofia

Mon 12/8

6:10 am-2:25 pm

1 stop16h 15m

$543

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Mon 11/24

1:46 pm-10:45 pm

2 stops24h 59m

Sofia

Wed 12/10

2:00 pm-11:54 pm

2 stops17h 54m

$544

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Wed 11/26

5:35 pm-6:20 pm

2 stops16h 45m

Sofia

Wed 12/10

6:05 am-11:54 pm

2 stops25h 49m

$544

DallasSofia

DFW - SOF

DFWSOF

Dallas/Fort Worth

Mon 11/24

1:46 pm-10:45 pm

2 stops24h 59m

Sofia

Fri 12/12

6:05 am-11:54 pm

2 stops25h 49m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

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 October 17, 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 $553). Flying from Irving to Sofia in June is currently the most expensive (average of $934). 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 October 23, 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 October 23, 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
8,991 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,991 reviews
United Airlines
7.4
Good
8,991 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Turkish Airlines
7.3
Good
4,022 reviews
United Airlines
7.4
Good
8,991 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Lufthansa
6.8
Okay
7,514 reviews
United Airlines
7.4
Good
8,991 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 17h 39m. Fly via United Airlines to get the fastest option. There are 5994 mi between Irving and Sofia.

  • 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 $553). Flying from Irving to Sofia in June is currently the most expensive (average of $934). 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

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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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$597Average$1,037FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$632Average$1,113FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$728Average$957FlexibilityNo cancel feeOn-time69%

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