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Cheap flights from Denver to Sofia from $382

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Sofia departing on 12/14. 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 Denver to Sofia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
8:20 pm - 2:00 pmDEN-SOF
33h 40m1 stop
Turkish Airlines Logo
9:35 am - 6:20 pmSOF-DEN
17h 45m1 stop
$593Turkish Airlines
Find Deal
Fri, Mar 27 - Tue, Apr 14
Turkish Airlines Logo
8:20 pm - 8:50 pmDEN-SOF
16h 30m1 stop
Turkish Airlines Logo
9:35 am - 6:35 pmSOF-DEN
17h 00m1 stop
$597Turkish Airlines
Find Deal
Thu, Mar 12 - Fri, Mar 20
Turkish Airlines Logo
8:25 pm - 3:00 pmDEN-SOF
33h 35m1 stop
Turkish Airlines Logo
9:35 am - 6:20 pmSOF-DEN
17h 45m1 stop
$603Turkish Airlines
Find Deal
Thu, Apr 9 - Thu, Apr 23
Turkish Airlines Logo
8:20 pm - 8:50 pmDEN-SOF
16h 30m1 stop
Turkish Airlines Logo
9:35 am - 6:20 pmSOF-DEN
17h 45m1 stop
$630Turkish Airlines
Find Deal
Thu, Mar 26 - Thu, Apr 16
Turkish Airlines Logo
8:25 pm - 8:15 pmDEN-SOF
14h 50m1 stop
Turkish Airlines Logo
9:35 am - 6:20 pmSOF-DEN
17h 45m1 stop
$632Turkish Airlines
Find Deal
Tue, Apr 28 - Tue, May 5
Turkish Airlines Logo
8:25 pm - 8:15 pmDEN-SOF
14h 50m1 stop
Turkish Airlines Logo
3:50 pm - 6:20 pmSOF-DEN
35h 30m1 stop
$643Turkish Airlines
Find Deal
Tue, Apr 28 - Wed, May 6
Turkish Airlines Logo
8:25 pm - 8:15 pmDEN-SOF
14h 50m1 stop
Turkish Airlines Logo
9:35 am - 6:20 pmSOF-DEN
17h 45m1 stop
$657Turkish Airlines
Find Deal
Sun, Apr 26 - Tue, May 5
Turkish Airlines Logo
8:25 pm - 8:15 pmDEN-SOF
14h 50m1 stop
Turkish Airlines Logo
9:05 pm - 6:20 pmSOF-DEN
30h 15m1 stop
$662Turkish Airlines
Find Deal
Sun, Mar 29 - Wed, Apr 15
Turkish Airlines Logo
8:25 pm - 3:00 pmDEN-SOF
33h 35m1 stop
Turkish Airlines Logo
9:35 am - 6:20 pmSOF-DEN
17h 45m1 stop
$667Turkish Airlines
Find Deal
Sun, Mar 29 - Thu, Apr 16
Turkish Airlines Logo
8:25 pm - 8:15 pmDEN-SOF
14h 50m1 stop
Turkish Airlines Logo
9:35 am - 6:20 pmSOF-DEN
17h 45m1 stop
$697Turkish Airlines
Find Deal
Sat, May 2 - Thu, May 7

Turkish Airlines flights from Denver to Sofia

Our best Turkish Airlines deals on Denver to Sofia flight tickets
Turkish Airlines
Mar 27
DEN8:20 pmDenver Intl
33h 40m
1 stop
SOF2:00 pmSofia
Apr 14
SOF9:35 amSofia
17h 45m
1 stop
DEN6:20 pmDenver Intl
$593
Find similar
Turkish Airlines
Mar 12
DEN8:20 pmDenver Intl
16h 30m
1 stop
SOF8:50 pmSofia
Mar 20
SOF9:35 amSofia
17h 00m
1 stop
DEN6:35 pmDenver Intl
$597
Find similar
Turkish Airlines
Apr 9
DEN8:25 pmDenver Intl
33h 35m
1 stop
SOF3:00 pmSofia
Apr 23
SOF9:35 amSofia
17h 45m
1 stop
DEN6:20 pmDenver Intl
$603
Find similar

British Airways flights from Denver to Sofia

Our best British Airways deals on Denver to Sofia flight tickets
British Airways
Apr 29
DEN6:40 pmDenver Intl
33h 50m
1 stop
SOF1:30 pmSofia
May 6
SOF9:30 pmSofia
28h 05m
1 stop
DEN4:35 pmDenver Intl
$752
Find similar
British Airways
Apr 29
DEN6:40 pmDenver Intl
33h 50m
1 stop
SOF1:30 pmSofia
May 4
SOF8:00 pmSofia
29h 35m
1 stop
DEN4:35 pmDenver Intl
$802
Find similar
British Airways
Apr 29
DEN6:40 pmDenver Intl
33h 50m
1 stop
SOF1:30 pmSofia
May 3
SOF9:10 pmSofia
28h 25m
1 stop
DEN4:35 pmDenver Intl
$852
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver 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 November 17, 2025.
Use the filters below to find and compare flights from Denver to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Fri 3/27

8:20 pm-2:00 pm

1 stop33h 40m

Sofia

Tue 4/14

9:35 am-6:20 pm

1 stop17h 45m

$593

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 3/12

8:20 pm-8:50 pm

1 stop16h 30m

Sofia

Fri 3/20

9:35 am-6:35 pm

1 stop17h 00m

$597

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 4/9

8:25 pm-3:00 pm

1 stop33h 35m

Sofia

Thu 4/23

9:35 am-6:20 pm

1 stop17h 45m

$603

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 3/26

8:20 pm-8:50 pm

1 stop16h 30m

Sofia

Thu 4/16

9:35 am-6:20 pm

1 stop17h 45m

$630

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 4/28

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Tue 5/5

9:35 am-6:20 pm

1 stop17h 45m

$632

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 4/28

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Wed 5/6

3:50 pm-6:20 pm

1 stop35h 30m

$643

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 4/26

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Tue 5/5

9:35 am-6:20 pm

1 stop17h 45m

$657

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 3/29

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Wed 4/15

9:05 pm-6:20 pm

1 stop30h 15m

$662

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 3/29

8:25 pm-3:00 pm

1 stop33h 35m

Sofia

Thu 4/16

9:35 am-6:20 pm

1 stop17h 45m

$667

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sat 5/2

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Thu 5/7

9:35 am-6:20 pm

1 stop17h 45m

$697

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Sofia from

How to get the cheapest flight ticket from Denver to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Denver is in April. Flight prices, which tend to average around $535, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Sofia from Denver during November instead. Flights to Sofia in November, while not as cheap as those in April, still average around $600.

What is the cheapest day to depart on your flight to Sofia?

According to our data, Thursday is the cheapest day to fly to Sofia from Denver. The lowest ticket price found for a Thursday departure recently was $781. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Denver to Sofia on a Saturday will generally be more expensive and average around $1,343. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Sofia?

In the evening is the cheapest time of day to fly from Denver to Sofia when you can find flight prices for as low as $784. Flying to Sofia in the evening is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Sofia, so prices are often more expensive at around $1,319 per ticket.

How far in advance should I book a flight to Sofia?

You are more likely to see cheaper flights to Sofia from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $848 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from Denver for as low as $743 on momondo.

When to book flights from Denver to Sofia

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

Cheap Denver to Sofia (DEN to SOF) flight deals and tips

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

Direct flights

None
There are no direct flights from Denver to Sofia. There are no popular flight routes from Denver to Sofia.
Search flight deals

  • How far is Denver Intl to Sofia by plane?

    There are 5884.6 mi between Denver Intl and Sofia. Typically, this will take 14h 50m by plane in normal conditions.

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

    Prices for flights from Denver Intl Airport to Sofia Airport were last updated today.

  • How many operators does momondo search for flights from Denver Intl Airport to Sofia Airport?

  • How old do you have to be to fly from Denver 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 Denver Intl Airport to Sofia Airport.

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

    The required travel and health documents for your Sofia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sofia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Denver to Sofia?

Best airlines flying from Denver to Sofia

Compare and see reviews for airlines that fly from Denver to Sofia with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $522Free CancellationRating
7.3
4,046 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $616Free CancellationRating
6.8
7,576 reviews
Search Lufthansa flights
United AirlinesPriceFrom $656Free CancellationRating
7.4
9,014 reviews
Search United Airlines flights

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 Denver to Sofia?

It is quick and easy to find Denver to Sofia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sofia that suits you.

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

Yes. All flights to Sofia from Denver on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sofia from Denver.

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

If you are not ready to book a flight from Denver 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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Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Turkish Airlines
United Airlines
Lufthansa