Miami to San Juan MIA → SJU
Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU)
The cheapest return found recently is $211 with Frontier Airlines, 18 Dec – 23 Dec, found today. The cheapest one-way found recently is $118 with American Airlines, 17 Apr 2027, found 3 days ago.
Return
The cheapest return fare on each of 15 departure dates is usually $141 to $273.
Cheapest return found recently
$211
18 Dec – 23 Dec · Frontier Airlines
Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU)
Leaves 5:03 p.m. · Return leaves 3:54 a.m. · 5 h 53 min of travel, both ways together
out nonstop, back nonstop
found today
Cheapest nonstop return
$211
18 Dec – 23 Dec · Frontier Airlines
Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU)
Leaves 5:03 p.m. · Return leaves 3:54 a.m. · 5 h 53 min of travel, both ways together
out nonstop, back nonstop
found today
Found recently, and the cheapest we hold
$211 18 Dec – 23 Decfound todaySee prices for these dates
$60 29 Oct – 4 Novfound 4 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $60 to $124.
At $211, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
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 15 departure dates from 21 Oct to 3 May 2027, 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 5-night return fares leaving within 3 days of 18 Dec to compare.
Every date we hold
22 fares on 15 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 21 Oct – 26 Oct | $234 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 22 Oct – 26 Oct | $205 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 23 Oct – 26 Oct | $167 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 29 Oct – 4 Nov | $60 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 30 Oct – 4 Nov | $93 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 6 Nov – 9 Nov | $115 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 9 Nov – 11 Nov | $103 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 13 Nov – 29 Nov | $342 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 23 Nov – 1 Dec | $207 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 24 Nov – 29 Nov | $287 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 25 Nov – 28 Nov | $259 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 26 Nov – 29 Nov | $300 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 18 Dec – 23 Dec | $211 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found today | See prices for these dates |
| 2 Jan 2027 – 10 Jan 2027 | $310 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 3 May 2027 – 10 May 2027 | $231 | American Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
October 2026 is the cheapest month — from $60.
Airlines on the cheapest dates: Frontier Airlines, American Airlines.
One-way
The cheapest one-way fare on each of 4 departure dates is usually $52 to $76.
Cheapest one-way found recently
$118
17 Apr 2027 · American Airlines
Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU)
Leaves 6:40 a.m. · 2 h 33 min trip
nonstop
found 3 days ago
Cheapest nonstop one-way
$118
17 Apr 2027 · American Airlines
Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU)
Leaves 6:40 a.m. · 2 h 33 min trip
nonstop
found 3 days ago
Found recently, and the cheapest we hold
$118 17 Apr 2027found 3 days agoOpen this trip
$40 29 Octfound 4 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $40 to $128.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 4 departure dates from 26 Oct to 17 Apr 2027, 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 one-way fares leaving within 3 days of 17 Apr 2027 to compare.
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 26 Oct | $56 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | nonstop | found 4 days ago | Open this trip |
| 29 Oct | $40 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | nonstop | found 4 days ago | Open this trip |
| 3 Feb 2027 | $62 | Frontier Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | nonstop | found 4 days ago | Open this trip |
| 17 Apr 2027 | $118 | American Airlines | Miami International Airport (MIA) → Luis Munoz Marin International Airport (SJU) | nonstop | found 3 days ago | Open this trip |
Which month looks cheapest?
October 2026 is the cheapest month — from $40.
Airlines on the cheapest dates: Frontier Airlines, American Airlines.
Premium cabin fares from Miami 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 18 Dec – 23 Dec in another cabin: Premium economy · Business · First
Today's prices for 17 Apr 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Miami to San Juan?
Return
Fares 14 to 29 days before departure were typically 27% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 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 | $168 | $129 | +36% | 14 |
| 7–13 days | $129 | $60 | +5% | 21 |
| 14–29 days | $124 | $60 | Cheapest seen | 24 |
| 30–59 days | $124 | $111 | +0% | 25 |
| 60–89 days | $237 | $125 | +92% | 24 |
| 90–179 days | $329 | $224 | +166% | 17 |
One-way
Fares 14 to 29 days before departure were typically 40% lower than 7 to 13 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 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 |
|---|---|---|---|---|
| 7–13 days | $104 | $40 | +68% | 10 |
| 14–29 days | $62 | $40 | Cheapest seen | 13 |
| 30–59 days | $72 | $62 | +16% | 20 |
| 60–89 days | $85 | $73 | +37% | 17 |
| 90–179 days | $92 | $62 | +48% | 25 |
| 180+ days | $121 | $118 | +95% | 14 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Fort Lauderdale → San Juan
40 km from Miami
$78
$133 less than flying from Miami
24 Oct – 27 Oct · FLL → SJU · out nonstop, back nonstop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Fort Lauderdale → San Juan
40 km from Miami
$37
$81 less than flying from Miami
29 Oct · FLL → SJU · nonstop
found yesterday
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 18 Dec – 23 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
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