How to get fromDenver to Bulgariaby plane or bus

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There are 4 ways to get from Denver to Bulgaria by plane or bus

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.

Fly to Sofia Airport
best
1. Fly from Denver (DEN) to Sofia Airport (SOF)plane DEN - SOF
16h 45m
$391–1,411
Fly to Burgas Airport
1. Fly from Denver (DEN) to Burgas Airport (BOJ)plane DEN - BOJ
17h 14m
$512–1,913
Fly to Bucharest Otopeni, bus
1. Fly from Denver (DEN) to Bucharest Otopeni (OTP)plane DEN - OTP
2. Take the bus from Buchurest to Rusebus
18h 45m
$399–1,426
Fly to Varna Airport
1. Fly from Denver (DEN) to Varna Airport (VAR)plane DEN - VAR
19h 42m
$695–2,030

Denver (DEN) to Sofia Airport (SOF) flights

20Weekly Planes

15h 2mAverage Duration

$387Cheapest Price

Questions & Answers

Map of how to get from Denver to Bulgaria.

Launch map view

Distance: 9,509.9 km
Duration: 16h 45m

What companies run services between Denver, CO, USA and Bulgaria?

United Airlines, Lufthansa, and two other airlines fly from Denver (DEN) to Sofia Airport (SOF) 3 times a day.

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Bus operators

Want to know more about travelling around the world?

Rome2Rio's Travel Guide series provide vital information for the global traveller. Read our range of informative guides on popular transport routes and companies - including Want to know more about Flixbus?, Is ride-sharing platform BlaBlaCar right for you?, and How to get from London to Edinburgh - to help you get the most out of your next trip.

Sofia(opens in a new window), Bulgaria(opens in a new window)

Sofia is the capital and largest city of Bulgaria. It is situated in the Sofia Valley at the foot of the Vitosha mountain, in the western part of the country. The city is built west of the Iskar river and has many mineral springs, such as the Sofia Central Mineral Baths. It has a humid continental climate. Being in the centre of the Balkans, it is midway between the Black Sea and the Adriatic Sea and closest to the Aegean Sea.

Things to do in Sofia

Ivan Vazov National Theatre(Opens in a new window)

The Ivan Vazov National Theatre (Bulgarian: Народен театър „Иван Вазов“, Naroden teatar „Ivan Vazov“) is Bulgaria's national theatre, as well as the oldest and most authoritative theatre in the country and one of the important landmarks of Sofia, the capital of Bulgaria. It is located in the centre of the city, with the facade facing the City Garden.

Alexander Nevsky Cathedral(Opens in a new window)

The St. Alexander Nevsky Cathedral (Bulgarian: Храм-паметник „Свети Александър Невски“, Hram-pametnik „Sveti Aleksandar Nevski“) is a Bulgarian Orthodox cathedral in Sofia, the capital of Bulgaria. Built in Neo-Byzantine style, it serves as the cathedral church of the Patriarch of Bulgaria and it is one of the largest Eastern Orthodox cathedrals in the world, as well as one of Sofia's symbols and primary tourist attractions. The St. Alexander Nevsky Cathedral in Sofia occupies an area of 3170 m2 and can hold 10,000 people inside. It is the second-largest cathedral located on the Balkan Peninsula, after the Cathedral of Saint Sava in Belgrade.

National Museum of Military History(Opens in a new window)

The National Military History Museum (Национален военноисторически музей, Natsionalen voennoistoricheski muzey) is a museum dedicated to military history in Sofia, Bulgaria. A structure of the Ministry of Defence, it has existed under various names and subordinate to various institutions since 1 August 1914 (in practice since 4 July 1916). It disposes of 5,000 m² of indoor and 40,000 m² outdoor (of which 500 m² covered) exhibition area, a library and a computer centre.

Vitosha(Opens in a new window)

Vitosha (Bulgarian: Витоша), the ancient Scomius or Scombrus, is a mountain massif, on the outskirts of Sofia, the capital of Bulgaria. Vitosha is one of the symbols of Sofia and the closest site for hiking, alpinism and skiing. Convenient bus lines and rope ways render the mountain easily accessible. Vitosha has the outlines of an enormous dome. The territory of the mountain includes Vitosha nature park that encompasses the best known and most frequently visited parts. The foothills of Vitosha shelter resort quarters of Sofia; Knyazhevo quarter has mineral springs. Vitosha is the oldest nature park in the Balkans. The mountain emerged as a result of volcanic activity and has been subsequently shaped by the slow folding of the granite rock layers and a series of gradual uplifts of the area. It appears dome shaped at first sight, but the mountain, 19 km long by 17 km wide, actually consists of concentric denudational plateaus rising in tiers one above the other. Vitosha is separated into four main parts whose main ridges gather at a crown known as Cherni Vrah ("Black Peak"). This is the highest point of the mountain at 2290 m and is one of 10 peaks of Vitosha over 2000 m in height.

Places to stay in Sofia

Rosslyn Thracia Hotel Sofia(Opens in a new window)

8.7Fabulous

Grand Vitosha Apartments(Opens in a new window)

9.1Superb

Vitosha Downtown Apartments(Opens in a new window)

8.8Fabulous

InterContinental Sofia by IHG(Opens in a new window)

9.0Fabulous

Rome2Rio makes travelling from Denver to Bulgaria easy.

Rome2Rio is a door-to-door travel information and booking engine, helping you get to and from any location in the world. Find all the transport options for your trip from Denver to Bulgaria right here. Rome2Rio displays up to date schedules, route maps, journey times and estimated fares from relevant transport operators, ensuring you can make an informed decision about which option will suit you best. Rome2Rio also offers online bookings for selected operators, making reservations easy and straightforward.