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SZR to DEN: distance & flight time
Stara Zagora (Stara Zagora Airport) → Denver (Denver International Airport)
5,961 mi
9,593 km · 5,180 nm
12h 9m
estimated nonstop flight time
-9h
time difference · heading northwest
See live SZR→DEN fares Phone-only fares on this route — call free
Flight time details
5,961 miles nonstop takes roughly 12h 9m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- SZR — Stara Zagora Airport · Stara Zagora, Bulgaria
- DEN — Denver International Airport · Denver, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near SZR
- JAM · Bezmer Air Base36 mi away
- PDV · Plovdiv International Airport46 mi away
- GOZ · Gorna Oryahovitsa Airport54 mi away
- BOJ · Burgas Airport96 mi away
Near DEN
- BFK · Buckley Air Force Base12 mi away
- APA · Centennial Airport22 mi away
- BJC · Rocky Mountain Metropolitan Airport24 mi away
- WBU · Boulder Municipal Airport32 mi away
Frequently asked questions
How far is SZR from DEN?
The flight distance from Stara Zagora (SZR) to Denver (DEN) is 5,961 miles (9,593 km, 5,180 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SZR to DEN?
A nonstop flight takes about 12h 9m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from SZR to DEN?
Nonstop service on SZR–DEN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 12h 9m nonstop estimate.
What is the time difference between Stara Zagora and Denver?
Denver is 9 hours behind Stara Zagora.
What is the cheapest way to fly from SZR to DEN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SZR–DEN that never appear on search engines, with no booking fees.
Why are some SZR to DEN fares phone-only?
Consolidator contracts let us sell certain SZR–DEN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.