Cheap flights from Houston to San Juan from $446 HOU, IAH → SJU
William P. Hobby Airport (HOU), George Bush Intercontinental Airport (IAH) → Luis Munoz Marin International Airport (SJU)
The cheapest return found recently is $446 with Frontier Airlines, 22 Dec – 1 Jan 2027, found 18 hours ago.
- Cheapest return found recently
- $446, 22 Dec to 1 Jan 2027
- Usual return price
- $429 to $517
- Cheapest month to fly
- November 2026, return fares from $412 found in the last 7 days
- Airlines with nonstop flights
- United Airlines, Frontier Airlines
Return
The cheapest return fare on each of 3 departure dates is usually $429 to $517.
Cheapest return found recently
$446
22 Dec – 1 Jan 2027 · Frontier Airlines
George Bush Intercontinental Airport (IAH) → Luis Munoz Marin International Airport (SJU)
Leaves 4:37 p.m. · Return leaves 2:29 a.m. · 27 h 42 min of travel, both ways together
out 1 stop, back 1 stop · via Fort Lauderdale-Hollywood International Airport (FLL), Hartsfield-Jackson Atlanta International Airport (ATL) · overnight connection · 13 h connection
found 18 hours ago
Cheapest nonstop return
$839
22 Dec – 2 Jan 2027 · Frontier Airlines
George Bush Intercontinental Airport (IAH) → Luis Munoz Marin International Airport (SJU)
Leaves 5:25 a.m. · Return leaves 2:58 a.m. · 9 h 30 min of travel, both ways together
out nonstop, back nonstop
found 18 hours ago
Found recently, and the cheapest we hold
$446 22 Dec – 1 Jan 2027found 18 hours agoSee prices for these dates
$412 26 Nov – 30 Novfound 4 days agoSee prices for these dates
What have prices looked like?
Over 50 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $151 to $548.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 3 departure dates from 26 Nov to 22 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 10-night return fares leaving within 3 days of 22 Dec to compare.
Every date we hold
45 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 26 Nov – 30 Nov | $412 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Luis Munoz Marin International Airport (SJU) | out 1 stop, back 2 stops | found 4 days ago | See prices for these dates |
| 20 Dec – 1 Jan 2027 | $587 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Luis Munoz Marin International Airport (SJU) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 22 Dec – 1 Jan 2027 | $446 | Frontier Airlines | George Bush Intercontinental Airport (IAH) → Luis Munoz Marin International Airport (SJU) | out 1 stop, back 1 stop | found 18 hours ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $412.
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Houston to San Juan
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 22 Dec – 1 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Houston to San Juan?
Return
Fares 14 to 29 days before departure were typically 19% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (50 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $258 | $258 | +23% | 7 |
| 7–13 days | $307 | $258 | +47% | 12 |
| 14–29 days | $209 | $151 | Cheapest seen | 19 |
| 30–59 days | $492 | $353 | +135% | 24 |
| 60–89 days | $516 | $292 | +147% | 17 |
| 180+ days | $486 | $486 | +133% | 9 |
Live price for these dates
The cheapest return found recently is for 22 Dec – 1 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Houston to San Juan?
The cheapest return found recently is $446 with Frontier Airlines, 22 Dec to 1 Jan 2027, found 18 hours ago. The cheapest return we hold, of any age, is $412 with Frontier Airlines, 26 Nov to 30 Nov, found 4 days ago. The cheapest return fare on each of 3 departure dates is usually $429 to $517.
What is the cheapest month to fly from Houston to San Juan?
November 2026 is the cheapest month for a return, from $412, 26 Nov to 30 Nov, found 4 days ago.
How far ahead should I book a flight from Houston to San Juan?
In 50 days of prices between 24 Sept and 12 Nov, return fares 14 to 29 days before departure were typically 19% lower than 0 to 6 days before departure.
Is there a direct flight from Houston to San Juan?
Yes, the cheapest nonstop return found recently is $839 with Frontier Airlines, 22 Dec to 2 Jan 2027, found 18 hours ago.
Which airlines have the cheapest flights from Houston to San Juan?
Between 26 Nov and 22 Dec, Frontier Airlines has the cheapest return on all 3 departure dates we hold.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work