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Cheap flights from Hartford to Sofia from $573

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Hartford to Sofia departing on 3/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Hartford to Sofia

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:45 pm - 10:45 pm
BDL
-
SOF
24h 00m
2 stops
United Airlines Logo
6:20 am - 11:59 pm
SOF
-
BDL
24h 39m
2 stops
$573United Airlines
Wed, Mar 25 - Wed, Apr 1
United Airlines Logo
4:45 pm - 10:45 pm
BDL
-
SOF
24h 00m
2 stops
United Airlines Logo
6:20 am - 2:08 pm
SOF
-
BDL
38h 48m
3 stops
$584United Airlines
Wed, Mar 25 - Wed, Apr 1
United Airlines Logo
12:10 pm - 10:45 pm
BDL
-
SOF
27h 35m
2 stops
United Airlines Logo
2:20 pm - 11:59 pm
SOF
-
BDL
16h 39m
2 stops
$747United Airlines
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
4:54 pm - 1:00 pm
BDL
-
SOF
38h 06m
2 stops
Multiple Airlines Logo
7:00 am - 11:59 pm
SOF
-
BDL
23h 59m
2 stops
$952Multiple Airlines
Fri, Mar 27 - Sat, Apr 11
Multiple Airlines Logo
6:40 pm - 9:20 pm
BDL
-
SOF
20h 40m
1 stop
Multiple Airlines Logo
10:55 pm - 4:30 pm
SOF
-
BDL
24h 35m
2 stops
$1,457Multiple Airlines
Fri, Mar 27 - Sat, Apr 11
Multiple Airlines Logo
6:40 pm - 9:20 pm
BDL
-
SOF
20h 40m
1 stop
Multiple Airlines Logo
5:45 am - 4:30 pm
SOF
-
BDL
17h 45m
1 stop
$1,633Multiple Airlines
Fri, Mar 27 - Sat, Apr 11
United Airlines Logo
12:05 pm - 1:35 pm
BDL
-
SOF
19h 30m
2 stops
United Airlines Logo
6:20 am - 9:37 pm
SOF
-
BDL
22h 17m
3 stops
$1,682United Airlines
Fri, Mar 27 - Sat, Apr 11
Air Canada Logo
10:28 am - 1:35 pm
BDL
-
SOF
21h 07m
3 stops
Air Canada Logo
6:20 am - 11:59 pm
SOF
-
BDL
24h 39m
3 stops
$2,168Air Canada
Fri, Mar 27 - Sat, Apr 11

United Airlines flights from Hartford to Sofia

Our best United Airlines deals on Hartford to Sofia flight tickets
United Airlines
Mar 25
BDL4:45 pmHartford Bradley Intl
24h 00m
2 stops
SOF10:45 pmSofia
Apr 1
SOF6:20 amSofia
24h 39m
2 stops
BDL11:59 pmHartford Bradley Intl
$573
United Airlines
Mar 25
BDL4:45 pmHartford Bradley Intl
24h 00m
2 stops
SOF10:45 pmSofia
Apr 1
SOF6:20 amSofia
38h 48m
3 stops
BDL2:08 pmHartford Bradley Intl
$584
United Airlines
Feb 26
BDL12:10 pmHartford Bradley Intl
27h 35m
2 stops
SOF10:45 pmSofia
Mar 2
SOF2:20 pmSofia
16h 39m
2 stops
BDL11:59 pmHartford Bradley Intl
$747

momondo Fare Finder

 
Customize your flight search to find flights from Hartford 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, momondo users made 832,500 searches. Data last updated February 10, 2026.
Use the filters below to find and compare flights from Hartford to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Wed 3/25

4:45 pm-10:45 pm

2 stops24h 00m

Sofia

Wed 4/1

6:20 am-11:59 pm

2 stops24h 39m

$573

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Wed 3/25

4:45 pm-10:45 pm

2 stops24h 00m

Sofia

Wed 4/1

6:20 am-2:08 pm

3 stops38h 48m

$584

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Thu 2/26

12:10 pm-10:45 pm

2 stops27h 35m

Sofia

Mon 3/2

2:20 pm-11:59 pm

2 stops16h 39m

$747

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Fri 3/27

4:54 pm-1:00 pm

2 stops38h 06m

Sofia

Sat 4/11

7:00 am-11:59 pm

2 stops23h 59m

$952

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Fri 3/27

6:40 pm-9:20 pm

1 stop20h 40m

Sofia

Sat 4/11

10:55 pm-4:30 pm

2 stops24h 35m

$1,457

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Fri 3/27

6:40 pm-9:20 pm

1 stop20h 40m

Sofia

Sat 4/11

5:45 am-4:30 pm

1 stop17h 45m

$1,633

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Fri 3/27

12:05 pm-1:35 pm

2 stops19h 30m

Sofia

Sat 4/11

6:20 am-9:37 pm

3 stops22h 17m

$1,682

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Fri 3/27

10:28 am-1:35 pm

3 stops21h 07m

Sofia

Sat 4/11

6:20 am-11:59 pm

3 stops24h 39m

$2,168

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Hartford to Sofia

Are you open to changing your travel dates? Check out the ideal times to fly from Hartford to Sofia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hartford to Sofia (BDL to SOF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hartford to Sofia

Fastest flight time

24h 00m

Direct flights

None
The fastest flight from Hartford to Sofia takes 24h 00m
There are no direct flights from Hartford to Sofia. There are no popular flight routes from Hartford to Sofia.
Search flight deals

  • How far is Hartford Bradley Intl to Sofia by plane?

    Sofia is 4610.3 mi away from Hartford Bradley Intl. Flights usually cover this in 24h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Hartford Bradley Intl Airport to Sofia Airport?

    Prices for flights from Hartford Bradley Intl Airport to Sofia Airport are updated daily.

  • How old do you have to be to fly from Hartford Bradley Intl Airport to Sofia Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Hartford Bradley Intl Airport to Sofia Airport.

  • What documentation or ID do you need to fly to Sofia Airport?

    The necessary travel and health documents for your Sofia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Hartford to Sofia?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Hartford from Sofia. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Hartford to Sofia with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Bansko
Borovets
Velingrad
Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from Hartford to Sofia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sofia from Hartford.

Can I find flights from Hartford to Sofia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sofia from Hartford which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Hartford to Sofia?

Once all potential Hartford to Sofia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Hartford to Sofia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Hartford to Sofia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sofia and let you know when they change.

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Cabin classes currently available on flights to Sofia

List of cabin classes available on flights landing in Sofia. Availability may vary depending on flight origin and airline.
First Class to Sofia
Business Class to Sofia