Route guide

Fontana to Buenos Aires (RES-EZE): Nonstop Upgrade & Award Space

Aerolíneas Argentinas and B&H Airlines fly nonstop from Fontana (RES) to Buenos Aires (EZE) just twice a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

See RES to EZE on the interactive map Get started free
2
Nonstop flights a week
510 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every RES to EZE departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Fontana to Buenos Aires to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each RES to EZE departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See RES to EZE on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Fontana to Buenos Aires nonstop

Carriers operating RES to EZE nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Aerolíneas Argentinas
  • B&H Airlines
See RES to EZE on the interactive map →

Frequently asked questions about RES to EZE

How far is Buenos Aires from Fontana?
RES to EZE covers about 510 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from RES to EZE?
Aerolíneas Argentinas and B&H Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How often does RES to EZE operate?
The nonstop currently runs twice a week. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on RES to EZE?
Open the RES to EZE calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Fontana to Buenos Aires route, and 2LNR will notify you when space opens. It's free to start.

Never miss RES to EZE upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

Get started free