Denver (DEN) – San Francisco (SFO)

Distance, flight time and the airlines that fly it, from open data.
Distance
1,556 km
967 mi · 840 nm
Flight time
2 h 43 min / 2 h 33 min
Average gate to gate: DEN → SFO / back
Time difference
1 h
CO2 per passenger
195 kg
One way, economy, incl. RF (115 kg CO2 only)
Passengers / year
1,743,354
Aug 2025 – Jul 2026 · −2.8%
Flights / week
212
Both directions, average
Seats filled
84%
2,086,432 seats a year
Airlines nonstop
4
UA, WN, F9

Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources

Great circle from DEN to SFODENSFO
Shortest path over the earth's surface (great circle). Real flights bend around weather, winds and airspace.

The way there

Heading from DEN
266°
Heading from SFO
75°
Halfway point
39.08, -113.66
Great-circle km
1,553 km (sphere, for EU261)
In the air DEN → SFO
2 h 14 min
In the air SFO → DEN
2 h 2 min
Clocks
San Francisco is 1 h behind Denver

The estimate for a route without real times is 2 h 40 min; how it is worked out is on Sources.

Passengers per month, both directions (Aug 2025 – Jul 2026)Busiest: June 2026: 162,750 passengers
0100K200KAugSepOctNovDecJanFebMarAprMayJun162.8KJul
Show as a table
Month Passengers
Aug 2025157,829
Sep 2025144,561
Oct 2025151,668
Nov 2025136,316
Dec 2025146,203
Jan 2026128,630
Feb 2026118,775
Mar 2026147,089
Apr 2026134,215
May 2026157,108
Jun 2026162,750
Jul 2026158,210
Flights per month, both directions (Aug 2025 – Jul 2026)Busiest: July 2026: 1,034 flights
05001K1.5KAugSepOctNovDecJanFebMarAprMayJunJul1K
Show as a table
Month Flights
Aug 2025928
Sep 2025907
Oct 2025927
Nov 2025871
Dec 2025926
Jan 2026888
Feb 2026805
Mar 2026899
Apr 2026852
May 2026973
Jun 2026997
Jul 20261,034

Airlines flying DEN–SFO nonstop

Airline Flights / week Share of passengers
UAUnited Air Lines132
66%
WNSouthwest Airlines54
22%
F9Frontier Airlines24
12%
OOSkyWest Airlines1.3
0%

Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources

Aircraft on this route

  • Airbus Industrie A321-200n · 3,118 flights
  • Boeing B737 Max 800 · 1,651 flights
  • Boeing 737-800 · 1,122 flights
  • Boeing 757-300 · 1,068 flights
  • Boeing 737-900ER · 845 flights
  • Airbus Industrie A320-200n · 840 flights
  • Boeing 737-700/700LR/Max 7 · 816 flights
  • Boeing B737 Max 900 · 814 flights

Also carried: 1,652 tonnes of freight and 420 tonnes of mail a year (passenger and cargo flights).

Punctuality

On time
69.9%
Arrived within 15 min of schedule
Average delay
19 min
Late arrivals count, early ones as 0
Cancelled
0.4%
Flights counted
10,926
Aug 2025 – Jul 2026
Airline On time Average delay
UAUnited Air Lines76.3%15 min
WNSouthwest Airlines55.5%28 min
F9Frontier Airlines67.6%20 min

Delay minutes by cause: airline 22% · aircraft arriving late 40% · air traffic system 37% · weather 1% · security 0%.

Both directions, Aug 2025 – Jul 2026. BTS Reporting Carrier On-Time Performance (US domestic flights of the larger US airlines). Sources

What passengers paid

Average fare, Q1 2026
$253
One way, all cabins
Average over a year
$234
Q2 2025 – Q1 2026
Largest airline
United Air Lines
67% of passengers · $291
Lowest-fare airline
Frontier Airlines
15% of passengers · $140

History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $220 · Q3 2025 $225 · Q4 2025 $241 · Q1 2026 $253).

Fare outlook, Q1 2027: about $258, likely $229–$294

The average fare paid we expect a year after Q1 2026, the newest DOT quarter. On this route, past forecasts made this way fell inside the range 81% of the time over 21 quarters (median error 4.3%). An estimate from US DOT data: not a price you can book, not a guarantee, not advice on when to buy. How the outlook works

Cheapest quarter on this route: Q3, typically 3% below the year's average (9 years of DOT data, without 2020–21).

U.S. DOT Consumer Airfare Report, Table 1a (airline ticket sample, US domestic airport pairs). Sources

Delay compensation (EU261 / UK261)

Measured by great-circle distance: 1,553 km.

Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).

Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.

Every airport pair between Denver and San Francisco

SFO
DEN1,556
BJC1,519

Kilometres. Linked numbers have a page of their own. All Denver airports

More routes from DEN

Route Distance Passengers / year
DEN → PHX968 km 2,417,314
DEN → LAX1,387 km 2,043,500
DEN → LAS1,011 km 2,041,165
DEN → ORD1,430 km 1,974,190
DEN → SEA1,648 km 1,819,437
DEN → SLC629 km 1,802,673
DEN → DFW1,032 km 1,745,260
DEN → MSP1,094 km 1,715,510
DEN → ATL1,930 km 1,697,204
DEN → SAN1,372 km 1,660,071

More routes from SFO

Route Distance Passengers / year
SFO → LAX543 km 2,842,388
SFO → ORD2,971 km 1,976,484
SFO → JFK4,162 km 1,910,892
SFO → EWR4,128 km 1,752,123
SFO → LAS666 km 1,684,053
SFO → SEA1,092 km 1,628,228
SFO → SAN719 km 1,602,478
SFO → BOS4,352 km 1,386,355
SFO → DFW2,357 km 1,313,229
SFO → TPE10,410 km 1,254,104

Questions

Denver (DEN) and San Francisco (SFO) are 1,556 km (967 miles, 840 nautical miles) apart, measured along the shortest path over the earth's surface.