🇺🇸 → 🇬🇧
PHX → LHR · Error fare alerts & flight price tracking
JetBlue
2026-05-05$404
JetBlue
2026-05-12$459
JetBlue
2026-10-06$459
JetBlue
2026-11-17$459
JetBlue
2026-11-17$459
JetBlue
2026-11-25$459
JetBlue
2026-08-11$509
JetBlue
2026-08-18$509
Prices from ITA Matrix. Updated every 6 hours.
Free alert when PHX→LHR drops 50%+ below normal
Finding cheap flights from Phoenix (PHX) to London (LHR) doesn't have to mean refreshing Google Flights every day. Our fare scanner monitors PHX→LHR prices around the clock using ITA Matrix data, comparing current fares against a 14-day pricing baseline. When an airline accidentally publishes a fare at 40–90% below normal — a mistake fare — you get an instant email.
Mistake fares on the PHX→LHR route happen when airlines make pricing errors during currency conversions, fare filing updates, or system maintenance. These error fares typically last 2–12 hours before being corrected, which is why real-time alerts are essential for booking them.
The cheapest recent fare we've tracked from PHX to LHR is $404 on JetBlue. Prices fluctuate constantly — set up a free alert to catch the next drop.
Midweek flights (Tuesday/Wednesday) tend to be cheapest. Booking 2-4 months in advance is the sweet spot for international fares. Our scanner checks fares across multiple date windows to catch anomalies.
Most of the time, yes. The U.S. DOT requires airlines to honor ticketed fares. Once you've booked and received confirmation, the airline is generally obligated to honor the fare.