| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 01 | DEN | LHR | 17:55 | 09:14 |
En-Route
|
Track > |
| Aug 31 | DEN | LHR | 18:56 | 10:05 |
Landed Late
|
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| Aug 30 | DEN | LHR | 17:51 | 09:12 |
Landed
|
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| Aug 29 | DEN | LHR | 18:46 | 10:14 |
Landed Late
|
Track > |
| Aug 28 | DEN | LHR | 17:42 | 09:15 |
Landed
|
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| Aug 27 | DEN | LHR | 17:50 | 09:20 |
Landed
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| Aug 26 | DEN | LHR | 17:51 | 09:20 |
Landed
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| Aug 25 | DEN | LHR | 18:01 | 09:48 |
Landed
|
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| Aug 24 | DEN | LHR | 19:06 | 10:38 |
Delayed
|
Track > |
| Aug 23 | DEN | LHR | 18:51 | 10:25 |
Landed Late
|
Track > |
Austrian Airlines Flight OS7991 connects Denver, United States to London, United Kingdom, taking off from Denver International Airport DEN and landing at London Heathrow Airport LHR.
How long is the OS7991 flight from Denver to London?
The average flight time from Denver to London is 8 hours and 28 minutes. The flight distance is 7496 km / 4658 miles and the average flight speed is 885 km/h / 550 mph.
How many OS7991 flights are operated per week?
6 flights per week. The flight OS7991 is operated on Monday, Tuesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of Austrian Airlines Flight OS7991 Denver to London?
The Airportia On-Time Performance Rating for Austrian Airlines Flight OS7991 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight OS7991 arriving at?
Flight OS7991 arrives at London Heathrow Airport (LHR) Terminal 2.
When was the latest OS7991 flight?
The latest flight took off on Wednesday, September 2nd, 2026 with the flight status being En-Route on 09:14.
How else can the flight OS7991 be referenced as?
This Austrian Airlines flight can also be referenced as AUA7991, OS 7991, AUA 7991.
How often is flight OS7991 delayed?
On average, 50% of all OS7991 flights are delayed. The average delay is 34 minutes.
Can I get compensation for my delayed or cancelled OS7991 flight or baggage issues?
If your OS7991 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our OS7991 Flight Tracker above for more details.
Other flights departing from Denver DEN: UA27, UA1199, UA1422, UA2473
Other flights arriving at London LHR: UA27, BA94, KM100, AZ202
All flights connecting Denver DEN to London LHR.
