American Airlines Flight AA3638 Deals & Information (2025/2026)

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American Airlines Flight 3638 Route Deals From $142

The cheapest prices found with in the last 7 days for return flights were $179 and $142 for one-way flights to Miami Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 30 - Fri, Sep 5
CVG
Cincinnati - Northern Kentucky Intl.
MIA
Miami Intl.
$179 Roundtrip, found 6 days ago
$179
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Aug 30 from Cincinnati - Northern Kentucky Intl. to Miami Intl., returning Fri, Sep 5, priced at $179 found 6 days ago
Thu, Oct 2 - Tue, Oct 7
CVG
Cincinnati - Northern Kentucky Intl.
MIA
Miami Intl.
$209 Roundtrip, found 5 hours ago
$209
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Oct 2 from Cincinnati - Northern Kentucky Intl. to Miami Intl., returning Tue, Oct 7, priced at $209 found 5 hours ago
Sat, Aug 30 - Fri, Sep 5
CVG
Cincinnati - Northern Kentucky Intl.
MIA
Miami Intl.
$213 Roundtrip, found 6 days ago
$213
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Aug 30 from Cincinnati - Northern Kentucky Intl. to Miami Intl., returning Fri, Sep 5, priced at $213 found 6 days ago
Thu, Oct 2 - Tue, Oct 7
CVG
Cincinnati - Northern Kentucky Intl.
MIA
Miami Intl.
$219 Roundtrip, found 5 hours ago
$219
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Oct 2 from Cincinnati - Northern Kentucky Intl. to Miami Intl., returning Tue, Oct 7, priced at $219 found 5 hours ago

Frequently asked questions

What route does flight number AA3638 take?
You'll be touching down at Miami Intl. Airport (MIA) from Cincinnati - Northern Kentucky Intl. Airport (CVG) if you're traveling on flight number AA3638. You'll be in the air for 2 hours and 39 minutes on this trip. It's also good to note that the service conveniently travels direct.
How often is AA3638 on time?
American Airlines flight number AA3638 between CVG and Miami, FL Airport (MIA-Miami Intl.) runs according to schedule 92% of the time --- so you can relax with confidence knowing that you'll reach your destination ASAP. If your journey is late, you're likely to wait 54 minutes. This route has a 2.85-star rating.
What kind of plane is on flight number AA3638?
Prepare to cruise aboard an Embraer 175 if your flight number is AA3638. Nearly all services from Cincinnati - Northern Kentucky Intl. Airport (CVG) to MIA operate using this kind of plane.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AA3638 flight with Travelocity, please visit our Customer Service Portal.