Quito Airport (UIO): terminals, flights, arrivals and departures

Aeropuerto Internacional Mariscal Sucre (IATA: UIO, ICAO: SEQM) is a network point for Quito, Ecuador. Our catalogue shows 0 departing routes and 1 arriving, with the airlines, frequencies and lowest peso (MXN) fares listed below.

Airport facts

UIO carries 1 routes and 2 airlines in our catalogue, totalling 7 weekly departures. Aeropuerto Internacional Mariscal Sucre (ICAO SEQM) serves Quito, Ecuador, in the America/Guayaquil zone (UTC−5 in July). Its coordinates (-0.12917, -78.3575) are the basis of every distance on this site.

• IATA: UIO
• ICAO: SEQM
• City: Quito
• Country: Ecuador
• Time zone: America/Guayaquil
• Coordinates: -0.12917, -78.3575
• Airlines at the airport: 2

Time difference against Mexico City. In July, Quito runs 1 h ahead of the Mexican capital (UTC−5 versus UTC−6). In January the airport operates on UTC−5, so the gap is not constant across the year: daylight saving shifts it. This is the calculation that decides whether a pre-booked ground connection still works.

Base of Avianca. An airline basing here means aircraft and crews overnighting at the airport: more of its own services to rebook a disrupted passenger onto, and more early departures. The flip side is that at an airport dominated by one carrier the competitive pressure on fares is weaker than where several compete.

What each code is for. The IATA code (UIO) is what the bag tag and the ticket use; the ICAO code (SEQM) is what flight plans, NOTAMs and flight trackers use. To follow the inbound aircraft that will become your flight, ICAO is the one that returns reliable results. And if UIO is not printed on your bag tag, the bag was not checked through to here — worth catching at the counter.

Airlines at UIO

2 catalogued airlines operate routes to or from UIO: 2 full-service and 0 low-cost, with checked allowance from 23 to 25 kg. Alliances present: SkyTeam, Star Alliance. They cover 1 catalogued routes and 7 weekly departures. The table below lists each operator with its type, alliance and checked allowance.

Carriers in our catalogue operating routes to or from this airport, with type, alliance and economy baggage allowance:

How this list is built. These are the airlines appearing in catalogued routes that touch UIO, not the airport’s full directory: a carrier that flies here but not on a pair we cover does not appear. The type — full-service or low-cost — and the allowance come from our own record for each carrier, and where the datum does not exist we say so rather than filling it with a plausible number.

2 kg separate the most generous operator from the leanest at UIO. That gap is what reorders prices once the bag is in: a cheaper base fare on a carrier with no included baggage can land above a full-service one the moment you check a single piece. Compare the total, not the headline figure.

Routes to Quito (UIO)

Our catalogue lists 1 routes into UIO, totalling 7 weekly departures and spanning 3,136 to 3,136 km. The busiest is MEX-UIO at ~7 flights a week; 0 of them carry a cached fare, spread across 1 audience profiles. Every row in this section comes from that same corridor catalogue, not from a live search.

What traffic UIO moves. By audience profile, the routes catalogued here split as: Latin American regional corridor (1). That mix explains the airport’s seasonality: family corridors spike in December and Holy Week, leisure ones follow the holiday calendar, and regional ones stay flatter across the year.

Why some rows have no fare. Of the 1 routes listed, 0 returned a price on the collector’s last pass and the rest show a dash. A dash means the automated query got no result for that pair — not that the route is suspended or expensive. For those pairs the reference price comes from the live search, which queries current inventory.

Frequency is the figure that drives price hardest. In a corridor with many weekly departures the seats compete against each other and the fare floor drops; in a thin one the airline does not need to discount to fill. Comparing two UIO routes on fare without looking at frequency therefore misleads: the dear one is not expensive, it simply has half the supply.

Connection tips

UIO concentrates 7 catalogued weekly departures across 2 airlines, in the America/Guayaquil zone. That density is what decides how much slack to leave on a connection: the more of its own services the airline runs here, the more same-day rebooking options exist.

Aeropuerto Internacional Mariscal Sucre runs on the America/Guayaquil time zone; factor the offset from your origin city when planning connections and transfers. The busiest route at UIO is MEX-UIO (~7 flights a week). Book 4–8 weeks ahead for the busiest routes to/from Quito; fares climb in December, Holy Week and summer. Each route guide above shows month-by-month seasonality and the lowest peso fare. That window is a general Mexican-market rule of thumb, not a measurement of this route: our series records observed prices, not the lead time at which each ticket was bought.

The cheap connection that loses the checked bag. Two separate tickets are not one itinerary: there is no interline agreement, the bag is not checked through to the final destination, and if the first flight lands late the second airline owes you nothing — it sold a different flight. The apparent saving evaporates the moment you buy a same-day replacement. On a single ticket, rebooking and the bag transfer are the carrier’s problem, not yours.

FAQ

The 8 questions on this record are answered from catalogue figures for UIO: routes and weekly frequencies, minimum fares observed by the collector, checked-baggage allowances and the rights regime that applies on each leg. No answer adds data that is not in those sources.

What are the IATA and ICAO codes for Quito airport? The IATA code is UIO and the ICAO code is SEQM. Aeropuerto Internacional Mariscal Sucre serves Quito, Ecuador.

Which airlines operate at UIO? Airlines on our catalogued routes at UIO: Aeromexico, Avianca.

How many routes are there from Quito (UIO)? Our catalogue lists 0 departing routes and 1 arriving at UIO — see the tables above.

What time zone is UIO in? UIO operates in the America/Guayaquil time zone.

How many weekly departures does UIO have in this catalogue? Across the catalogued routes touching UIO we count 7 weekly departures over 2 airlines and 1 routes. That is the coverage relevant to Mexican travellers, not the airport’s full directory.

What is the time difference between Quito and Mexico City? In July, Quito runs 1 h ahead of Mexico City (UTC−5 versus UTC−6). The gap shifts with daylight saving, so recompute it for your exact date before booking transfers.

What is the longest catalogued route at UIO? Catalogued routes at UIO span 3,136 to 3,136 km great-circle, computed from each airport’s coordinates. That distance drives aircraft type and the applicable compensation band on European sectors.

Which airlines are based at UIO? Avianca run UIO as a base. An airline based here keeps aircraft and crews overnight, so it has more of its own services to rebook a disrupted passenger onto the same day.

Related

• Ecuador airports

Published by FlightsMX Editorial Team. Last verified: May 2026.