Book your 2026 Byway trip by December 10 and get complimentary first-class train upgrades on select eligible trips departing in 2026. Book before 11:59 PM GMT on 12/10/2025. Trips eligible for the offer will show a 'free first-class travel' option for you to select at the top of the itinerary. Subject to availability.
Only applies to eligible marked trips booked between 10/20/2025 and 12/10/2025 (11:59 PM GMT) with departure dates between 01/01/26 and 12/31/26.
First-class upgrade offer applies to eligible daytime trains using a digital Interrail/Eurail pass outside your country of residence, subject to availability.
Eurostar upgrades will be for Eurostar Plus, where available.
Sleeper trains, ferries, and buses are excluded.
Trips with this offer aren't eligible for a paper Interrail pass—you'll need to use a digital pass on your trip.
Offer subject to availability of first-class seats. It may not be possible to include first class on all trains or routes. Compensation won't be provided where first-class seats are unavailable. Booking well in advance helps with availability.
You must have checked the 'free first-class travel' box at the top of the itinerary at the time of booking to redeem the offer. This will default to checked on eligible trips, but if you uncheck it, your trip won't qualify.
Any major changes requested post-booking are subject to our standard major changes policy. Rebooked trips and trips with major changes won't be eligible for the complimentary first-class upgrade.
These booking conditions were last updated on October 27, 2025.
