| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 14 | KEF | OPO | 15:13 | 20:22 |
Delayed
|
Track > |
| Aug 30 | KEF | OPO | 15:00 | 20:06 |
En-Route
|
Track > |
| Aug 26 | KEF | OPO | 15:10 | 20:18 |
En-Route
|
Track > |
| Aug 23 | KEF | OPO | 15:10 | 19:54 |
En-Route
|
Track > |
| Aug 19 | KEF | OPO | 15:00 | 19:49 |
En-Route
|
Track > |
| Aug 16 | KEF | OPO | 15:00 | 20:04 |
En-Route
|
Track > |
| Aug 12 | KEF | OPO | 15:10 | 19:53 |
En-Route
|
Track > |
| Aug 09 | KEF | OPO | 15:00 | 19:58 |
Scheduled
|
Track > |
| Jul 29 | KEF | OPO | 15:00 | 19:45 |
En-Route
|
Track > |
| Jul 26 | KEF | OPO | 15:00 | 19:59 |
En-Route
|
Track > |
Avion Express Flight X921 connects Reykjavik, Iceland to Porto, Portugal, taking off from Keflavik International Airport KEF and landing at Porto Francisco de Sa Carneiro Airport OPO.
How long is the X921 flight from Reykjavik to Porto?
The average flight time from Reykjavik to Porto is 4 hours and 9 minutes. The flight distance is 2683 km / 1667 miles and the average flight speed is 673 km/h / 418 mph.
What is the On-Time Performance (OTP) of Avion Express Flight X921 Reykjavik to Porto?
The Airportia On-Time Performance Rating for Avion Express Flight X921 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight X921 arriving at?
Flight X921 arrives at Porto Francisco de Sa Carneiro Airport (OPO) Terminal M.
When was the latest X921 flight?
The latest flight took off on Sunday, September 14th, 2025 with the flight status being En-Route on 20:22.
How else can the flight X921 be referenced as?
This Avion Express flight can also be referenced as NVD21, NVD021, X9021, X90021, X9 21, NVD 21.
How often is flight X921 delayed?
On average, 10% of all X921 flights are delayed. The average delay is 15 minutes.
Can I get compensation for my delayed or cancelled X921 flight or baggage issues?
If your X921 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 X921 Flight Tracker above for more details.
Other flights departing from Reykjavik KEF: BU534, BU554, BU654, X9554
Other flights arriving at Porto OPO: BU554, IB8276, IB8179, X9554
All flights connecting Reykjavik KEF to Porto OPO.
