How long is the IB3917 flight?

The timetable allows 9 h 5 min. London to St. Louis is 6,741 km (4,189 mi).

Which terminal does IB3917 use?

It usually leaves from Terminal 5 at London Heathrow Airport (LHR) and arrives at Terminal 2 at St. Louis Lambert International Airport (STL). Check the flight card above for today's terminal and gate.

What other flight numbers does IB3917 have?

Also listed as IBE3917 (Iberia's ICAO code) and IB 3917.

Can I get compensation if IB3917 is delayed or cancelled?

Up to £520 per passenger may be due under UK261 when it arrives 3 or more hours late or is cancelled, unless the cause was outside the airline's control. Departing the UK, this flight is covered by UK261.

IB3917 Flight Status Iberia: London to St. Louis (IBE3917)

IB 3917 London to St. Louis Flight Status

Not scheduled today. Latest flight: October 23rd, 2026 ; recent history is in the table below.

IB 3917 Flight Status & Schedule Iberia London to St. Louis

Date	From	To	Departure	Arrival	Status	Details
Oct 23	LHR	STL	18:03	20:30	Delayed	Track >
Oct 21	LHR	STL	17:14	19:27	Landed	Track >
Oct 20	LHR	STL	16:49	19:10	Landed	Track >
Oct 18	LHR	STL	17:12	19:49	Landed Late	Track >
Oct 16	LHR	STL	17:08	19:34	Landed	Track >
Oct 14	LHR	STL	16:45	19:22	Landed	Track >
Oct 13	LHR	STL	16:40	19:12	Landed	Track >
Oct 11	LHR	STL	17:40	20:10	Landed Late	Track >
Oct 09	LHR	STL	16:58	19:37	Landed	Track >
Oct 07	LHR	STL	17:10	19:58	Landed Late	Track >

Iberia flight IB 3917 links London and St. Louis, 6,741 km (4,189 mi) apart. With 9 h 5 min in the timetable and a usual flight time of about 8 h 30 min, it often makes up time. It is not flying today; the last flight was scheduled on 23 October 2026.

< All London LHR Departures All St. Louis STL Arrivals >

About IB 3917

Route: London Heathrow Airport LHR to St. Louis Lambert International Airport STL
Distance: 6,741 km (4,189 mi)
Typical flight time: 8 h 30 min
On time: 6 of the last 9
Average delay when late: 29 min
Usually departs from: Terminal 5

Departing the UK, this flight is covered by UK261. Compensation of up to £520 per passenger can apply when it arrives 3 or more hours late or is cancelled.

IB 3917 FAQ

How long is the IB3917 flight?: The timetable allows 9 h 5 min. London to St. Louis is 6,741 km (4,189 mi).
How often is IB3917 late?: 3 of the last 9 flights arrived 15 or more minutes late; when late, by 29 minutes on average.
Which terminal does IB3917 use?: It usually leaves from Terminal 5 at London Heathrow Airport (LHR) and arrives at Terminal 2 at St. Louis Lambert International Airport (STL). Check the flight card above for today's terminal and gate.
What other flight numbers does IB3917 have?: Also listed as IBE3917 (Iberia's ICAO code) and IB 3917.
Can I get compensation if IB3917 is delayed or cancelled?: Up to £520 per passenger may be due under UK261 when it arrives 3 or more hours late or is cancelled, unless the cause was outside the airline's control. Departing the UK, this flight is covered by UK261.

IB3917 and London LHR to St. Louis STL Flights

Flight IB3917 is a code-share Iberia flight of the British Airways operated BA221.

Other flights departing from London LHR: LH2477, BA221

Other flights arriving at St. Louis STL: BA221, G74527, G74412

All flights connecting London LHR to St. Louis STL.