EU261 / UK261 · No win, no fee
OS7858 flight compensation
Austrian Airlines flight OS7858 is a scheduled service operating from San Francisco International Airport to London Heathrow Airport.
Check your OS7858 flightQuick facts
- Flight number
- OS7858
- Airline
- OS
- ICAO airline code
- AUA
- Origin airport
- San Francisco International Airport
- Destination airport
- London Heathrow Airport
- Distance category
- Long-haul
- EU261 protection
- No
- UK261 protection
- Yes
- Aircraft
- B789
- Schedule snapshot
- 2 Sept 2026, 02:50 – 2 Sept 2026, 13:10
About OS7858
Passengers travelling on Austrian Airlines flight OS7858 between San Francisco and London may be entitled to compensation if the flight was delayed, cancelled or heavily disrupted.
How much compensation can you receive?
Under UK261 the amounts are £220, £350 or £520 depending on distance.
Passenger rights under EU261
UK261 can provide a fixed amount for a long delay, some cancellations, or denied boarding when its conditions are met.
When are you entitled to compensation?
Eligible passengers travelling on OS7858 may receive compensation when the disruption was within the airline's control and the legal requirements for the San Francisco to London route are met.
OS7858 compensation statistics
The statistics below summarise the passenger-rights framework that may apply to OS7858.
Under UK261 the amounts are £220, £350 or £520 depending on distance.
Arrival delay normally required.
Applies on eligible European flights.
What happens after you submit your claim?
Once your OS7858 claim has been submitted, FlightClaimly guides you through the compensation process.
- 1
Submit your claim
You check your flight, add your passenger details and upload the documents needed to start the case.
- 2
FlightClaimly reviews the case
We review the information and prepare the claim before contacting the airline.
- 3
The airline responds
The airline reviews the claim and may approve, reject or request additional information.
- 4
You receive your payout
If the claim is successful, FlightClaimly helps complete the payout process.
How the claim process works
- 1Check your flight details and tell us what happened.
- 2Confirm whether the disruption may qualify under EU261 or UK261.
- 3Add your passenger details and booking reference.
- 4Sign the authority form so FlightClaimly can handle the claim.
- 5Upload your supporting documents.
- 6FlightClaimly submits the claim and follows up with the airline.
Common OS7858 disruption types
- ✓ Flight delayed more than 3 hours
- ✓ Flight cancelled
- ✓ Missed connection
- ✓ Denied boarding
- ✓ Technical problems
- ✓ Operational disruption
- ✓ Crew shortage
- ✓ Strike
- ✓ Bad weather
Frequently asked questions
Can I claim compensation for a delayed flight?
Yes. If your flight arrived at least three hours late and the disruption was within the airline's control, you may be entitled to compensation under EU261 or UK261.
How much compensation can I receive?
Under UK261 the amounts are £220, £350 or £520 depending on distance.
What documents do I need?
Usually your booking confirmation or boarding pass is enough to get started. In some cases we may request additional documentation.
How long does the claim process take?
Every airline is different. Some claims are resolved within a few weeks, while others may take several months if they are disputed.
Do I pay anything upfront?
No. FlightClaimly works on a no win, no fee basis. You only pay if we successfully recover compensation for you.
- Austrian Airlines (OS)
- San Francisco (SFO) → London (LHR)
- approx. 8,616 km · Long-haul (over 3,500 km)
- £520 (UK261), depending on the airline · UK261 depending on the airline · B789 · Vienna International Airport (VIE)
OS 7858 (OS7858) is sold by Austrian Airlines. On a codeshare another airline may operate the flight, and the operating airline determines which rules apply.
OS7858 departs from United States and lands in United Kingdom. If Austrian Airlines also operates the flight, UK261 may apply, as Austrian Airlines is an EU airline. If another airline operates it, that airline decides.
With about 8,616 km between SFO and LHR (long-haul (over 3,500 km)), compensation may be £520 (UK261), depending on the airline, if you are entitled to it. All amounts
Does EU261 apply to Austrian Airlines flight OS 7858?
No, but UK261 may apply if the operating airline is a UK or EU airline.
Who operates Austrian Airlines flight OS 7858?
In our data, Austrian Airlines is the airline selling OS7858. Who actually operates the flight is shown on your ticket or booking confirmation.
Was OS 7858 part of a connecting flight? How is compensation calculated?
Your booking shows this, not the flight number. If OS7858 was part of a connecting journey on one booking, distance is counted from the first departure airport to the final destination, and the delay is counted on arrival at the final destination. The distance band (short-, medium- or long-haul) follows that distance and may then differ from this leg (£520 (UK261), depending on the airline).