Cheap flights from Denver to Sofia from $392
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 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 February instead. Flights to Sofia in February, while not as cheap as those in April, still average around $614.
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 $915 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 $715 on momondo.
What is the cheapest airline that flies from Denver Intl to Sofia?
United Airlines, Lufthansa, and Turkish Airlines are the most popular carriers operating from Denver Intl to Sofia
What airlines fly to Sofia?
Turkish Airlines, United Airlines and Lufthansa are the top three most popular airlines that fly to Sofia from Denver according to our data. Turkish Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 3 different airlines that fly to Sofia on a routine basis, so you have a few additional options to choose from.
When to book flights from Denver to Sofia
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
How far is Denver Intl to Sofia by plane?
There are 5884.6 mi between Denver Intl and Sofia. Typically, this will take 14h 51m 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?
As of July 2025, there are 3 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Denver to Sofia is Turkish Airlines, representing 58% of all bookings. The subsequent popular airlines are United Airlines at 23% and Lufthansa at 19%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $527 | Free Cancellation | Rating 7.3 3,893 reviews | |||
| PriceFrom $653 | Free Cancellation | Rating 7.4 8,844 reviews | |||
| PriceFrom $672 | Free Cancellation | Rating 6.8 7,193 reviews |
Traveling to a place near Sofia?
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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.