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Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]  
Contractual Purchase Commitments
As of September 30, 2016, the Company had firm deliveries and options for Boeing 737-700, 737-800, 737-7, and 737-8 aircraft as follows:

 
The Boeing Company
737
 
 
 
 
 
-800 Firm Orders
-800 Options
-7
Firm
Orders
-8
Firm
Orders
 
-8 Options
 
Additional -700s
Total
 
2016
38
 
 
23
61
(2)
2017
39
14
 
 
14
67
 
2018
16
14
13
 
 
4
47
 
2019
15
 
5
 
20
 
2020
14
 
8
 
22
 
2021
1
13
 
18
 
32
 
2022
15
 
19
 
34
 
2023
34
 
23
 
57
 
2024
41
 
23
 
64
 
2025
40
 
36
 
76
 
2026
 
36
 
36
 
2027
 
23
 
23
 
Total
93
14
30
170
(1)
191
(1)
41
539
 
(1) The Company has flexibility to substitute 737-7 in lieu of 737-8 aircraft beginning in 2019.
(2) Includes 25 737-800s and 19 737-700s delivered as of September 30, 2016. The 19 737-700s are classified as capital leases and have increased the Company's future capital lease obligations by $6 million remaining in 2016, $29 million in 2017, $29 million in 2018, $28 million in 2019, $27 million in 2020, and $176 million thereafter.